/* Setting the step URLs*/
	
	var eb_step1 = 'http://www.piac.com.pk/index.aspx';
	var eb_step2 = 'http://www.piac.com.pk/Ebooking_select.aspx';
	var eb_step3 = 'http://www.piac.com.pk/Ebooking_info.aspx';
	var eb_step4 = 'http://www.piac.com.pk/Ebooking_pnr.aspx';
	var eb_fare = 'http://www.piac.com.pk/Ebooking_fares_inline.aspx';
	var eb_print_pnr = 'http://www.piac.com.pk/Print_pnr.aspx';
	var processing_page = 'http://www.piac.com.pk/processing.htm';
	
	
		var eb_payment = 'https://www.piac.com.pk/Ebooking_payment.aspx';
	
			
	
	
	var imgDir = "images/";
	var Image1 = new Image();
	Image1.src = imgDir+"calendar.gif";
	
	var ms_table_row_guid = 2;
	
	var check_num_sectors = true;

	var foreground = '#F3F3F3';
	var background = '#434e64';
	var months_abbr = ["JAN", "FEB", "MAR", "APR", "MAY", "JUN","JUL", "AUG", "SEP", "OCT", "NOV", "DEC"];
	//var width_1 = '30%';
	//var width_2 = '26%';
	
	function checkDates() {
			
					
			var str = new String(trim(document.getElementById("CurrentDate").value));	
			var splitString = str.split("-");						
			var curr_dt = new Date(
								Number(splitString[2]),
								Number(splitString[1]) - 1,
								Number(splitString[0]));
								
			var strDayFrom = new String(trim(document.getElementById("day_from").value));						
			var strMonthYearFrom = new String(trim(document.getElementById("month_year_from").value));						
			var strMonthNoFrom  = getMonthIndexForAbbr(strMonthYearFrom.substr(0,3));
			var strYearNoFrom  = strMonthYearFrom.substr(strMonthYearFrom.length - 4, 4);
			var dt_from = new Date(
						Number(strYearNoFrom),
						Number(strMonthNoFrom),
						Number(strDayFrom));			
						
			if(dt_from < curr_dt)
			{
				alert("Departure date should be ahead of the current date.");
				return false;
			}
			
			if(direction == 'returntravel') 
			{
				var strDayTo = new String(trim(document.getElementById("day_to").value));						
				var strMonthYearTo = new String(trim(document.getElementById("month_year_to").value));						
				var strMonthNoTo  = getMonthIndexForAbbr(strMonthYearTo.substr(0,3));
				var strYearNoTo  = strMonthYearTo.substr(strMonthYearTo.length - 4, 4);
				var dt_to = new Date(
							Number(strYearNoTo),
							Number(strMonthNoTo),
							Number(strDayTo));
				
				if(dt_to < dt_from) 
				{
					alert("Departure date can not be ahead of the Arrival date.");
					return false;
				}
			
							
				if(dt_to < curr_dt) 
				{
					alert("Departure/Arrival date should be greater than the current date.");															
					return false;
				}
			}
			
		
		return true;
	}
	
	
	var direction = "returntravel";
	
	function redirectTosabresonic() {
		

	//var strReferer  = Request.ServerVariables["HTTP_REFERER"];
		
				
		if(!checkDates())
			return;
		
		if(document.frm_ebooking.num_adults.selectedIndex<=(document.frm_ebooking.num_infants.selectedIndex-1)) {
			alert("Number of infants can not exceed the number of adults");
			return;
		}
		
		if(document.frm_ebooking.num_adults.selectedIndex==0 && document.frm_ebooking.num_children.selectedIndex==0) {
			alert("Atleast one passenger should be specified (whether a child or an adult).");
			return;
		}
		
		//if(Number(document.frm_ebooking.last_pane.value)==1)
		//{
			//var to = document.getElementById("to_0");
			//var from = document.getElementById("from_0");
			
			//alert(document.getElementById("from_0").value);
			//alert(document.getElementById("to_0").value);
			
			//if(document.getElementsByTagName("option")[from.selectedIndex].value == document.getElementsByTagName("option")[to.selectedIndex].value)
			if(document.getElementById("from_0").value == document.getElementById("to_0").value)
			{
				alert('Origin and destination cannot be the same ');
			//	to.focus();
				return
			}					
		//}
		/*else
		{
			
			var count = Number(document.getElementById("num_ms_sectors").value)
			for(var i=1;i<=count;i++) {
				var to = document.getElementById("to_"+i);
				var from = document.getElementById("from_"+i);
				if(to.selectedIndex==from.selectedIndex)
				{
					alert('Origin and destination cannot be the same');
					to.focus();
					return
				}
			}					
		}
		*/
		
		if( (Number(document.getElementById("num_adults").value) +
				Number(document.getElementById("num_children").value)) > 6 ) 
		{
			alert('The total number of adults and children can not exceed 6')
			document.getElementById("num_children").focus();
			return;
		}
	

		
		var fr_city = document.frm_ebooking.from_0.value;
		var to_city = document.frm_ebooking.to_0.value;
		//var fr_dt = document.frm_ebooking.departure_date_0.value;
		//var to_dt = document.frm_ebooking.return_date.value;
		var fr_time = document.frm_ebooking.time_0.value;
		if(fr_city == 'JFK'  ||  fr_city == 'NYC' ||  fr_city == 'YYZ' ||  fr_city == 'YTO' || fr_city == 'BAH')
			fr_time = '1300'								
		var to_time = document.frm_ebooking.time_1.value;					
		
		//var fr_dt_day = document.frm_ebooking.day_from.value;
		//var fr_dt_month = document.frm_ebooking.month_year_from.value;		
		var to_dt_day = document.frm_ebooking.day_to.value;
		var to_dt_month = document.frm_ebooking.month_year_to.value;
		
		
		//var str = new String(trim(fr_dt));
		//var splitString = str.split("-")	
		var fr_day = document.frm_ebooking.day_from.value;
		var fr_month = document.frm_ebooking.month_year_from.value.toUpperCase().substring(0,3);
		
		
		//str = new String(trim(to_dt));
		//splitString = str.split("-")	
		var to_day = document.frm_ebooking.day_to.value;
		var to_month = document.frm_ebooking.month_year_to.value.toUpperCase().substring(0,3);

		
							
		var adt = document.frm_ebooking.num_adults.value;
		var chd = document.frm_ebooking.num_children.value;
		var inf = document.frm_ebooking.num_infants.value;
		var addt = "empty";
		if(Number(adt)>0)
			addt = "&ADT="+adt;
		if(Number(chd)>0)
			addt = addt + "&CHD="+chd;
		if(Number(inf)>0)
			addt = addt + "&INF="+inf;
			
					
		var clas = document.frm_ebooking.class_0.value;
		

		if(clas == "0")
			clas = "BusinessClass";
		else
			clas = "EconomyClass";
		
		
		
		//var query_string = "https://cat.sabresonicweb.com/meridia?posid=03L7&bM=air&page=requestAirMessage_air&action=airRequest&currency=PKR&departCity="+fr_city+"&depMonth="+fr_month+"&depDay="+fr_day+"&depTime="+fr_time+"&returnCity="+to_city;
		//var query_string = "https://ww3.dotres.com/meridia?posid=03L7&bM=air&page=requestAirMessage_air&action=airRequest&currency=PKR&departCity="+fr_city+"&depMonth="+fr_month+"&depDay="+fr_day+"&depTime="+fr_time+"&returnCity="+to_city;
		//var query_string = "https://cat.sabresonicweb.com/meridia?posid=03L7&bM=air&page=requestAirMessage_air&action=airRequest&currency=PKR&departCity="+fr_city+"&depMonth="+fr_month+"&depDay="+fr_day+"&depTime="+fr_time+"&returnCity="+to_city;
		var query_string = "https://ww3.dotres.com/meridia?posid=PKPK&bM=air&page=requestAirMessage_air&action=airRequest&departCity="+fr_city+"&depMonth="+fr_month+"&depDay="+fr_day+"&depTime="+fr_time+"&returnCity="+to_city;
		
		if(direction == "returntravel")
			query_string = query_string + "&retMonth="+to_month+"&retDay="+to_day+"&retTime="+to_time;
		else
			query_string = query_string + "&retMonth="+fr_month+"&retDay="+fr_day+"&retTime="+fr_time;
		query_string = query_string +"&direction="+ direction + addt + "&classService="+clas+"&B1=Submit&flightType=1&actionType=nonFlex&realRequestAir=realRequestAir";
		
		
		//document.frm_ebooking.__VIEWSTATE.value = '';
		//document.frm_ebooking.__VIEWSTATE.name = 'void';
		
		window.open(query_string, target='_self');
		
		//document.frm_ebooking.action = query_string;
		
		//document.frm_ebooking.action = "http://www.piac.com.pk/SError.aspx";
				
		//document.frm_ebooking.submit();
	}
	
	
	function validateAndSubmit() {				
	if(document.frm_ebooking.sector_mode.value == "single") {
			if(document.getElementById('return_date_span').style.visibility == 'visible') {
				if(!checkDates())
					return;
			}				
		}

		if(document.frm_ebooking.num_adults.selectedIndex<=(document.frm_ebooking.num_infants.selectedIndex-1)) {
			alert("Number of infants can not exceed the number of adults");
			return;
		}
		
		if(document.frm_ebooking.num_adults.selectedIndex==0 && document.frm_ebooking.num_children.selectedIndex==0) {
			alert("Atleast one passenger should be specified (whether a child or an adult).");
			return;
		}
		
		if(Number(document.frm_ebooking.last_pane.value)==1)
		{
			var to = document.getElementById("to_0");
			var from = document.getElementById("from_0");
			if(to.selectedIndex==from.selectedIndex)
			{
				alert('Origin and destination cannot be the same ');
				to.focus();
				return
			}					
		}
		else
		{
			var count = Number(document.getElementById("num_ms_sectors").value)
			for(var i=1;i<=count;i++) {
				var to = document.getElementById("to_"+i);
				var from = document.getElementById("from_"+i);
				if(to.selectedIndex==from.selectedIndex)
				{
					alert('Origin and destination cannot be the same');
					to.focus();
					return
				}
			}					
		}
		
		if( (Number(document.getElementById("num_adults").value) +
				Number(document.getElementById("num_children").value)) > 6 ) 
		{
			alert('The total number of adults and children can not exceed 6')
			document.getElementById("num_children").focus();
			return;
		}
		
		document.frm_ebooking.__VIEWSTATE.value = '';
		document.frm_ebooking.__VIEWSTATE.name = 'void';
		document.frm_ebooking.action = eb_step2;
		displayProcessing();
		document.frm_ebooking.submit();
	}
	
	function switchPane(num) {			
		if(num==2) {					
			document.frm_ebooking.departure_date_1.value = document.frm_ebooking.departure_date_0.value;
			document.frm_ebooking.from_1.selectedIndex = document.frm_ebooking.from_0.selectedIndex;
			document.frm_ebooking.to_1.selectedIndex = document.frm_ebooking.to_0.selectedIndex;					
			if(document.getElementById('ms_table').rows.length==4) {
				check_num_sectors = false;
				addSector();
			}
			
			//document.getElementById("_div").doScroll("pageDown");	
			try{document.getElementById("_div").doScroll("pageDown");}catch(err){}
		}else {
			document.frm_ebooking.departure_date_0.value = document.frm_ebooking.departure_date_1.value;
			document.frm_ebooking.from_0.selectedIndex = document.frm_ebooking.from_1.selectedIndex;
			document.frm_ebooking.to_0.selectedIndex = document.frm_ebooking.to_1.selectedIndex;
		}			
		var lastPane = document.frm_ebooking.last_pane.value;
		//var thisTab = document.getElementById("tab_"+num);
		//var lastTab = document.getElementById("tab_"+lastPane);
		//alert(num==lastPane)
		
		document.frm_ebooking.last_pane.value = num;
		if(num==1) 
			document.frm_ebooking.sector_mode.value = "single";
		else
			document.frm_ebooking.sector_mode.value = "multiple"
		
		if(num==lastPane)  
			return;
		document.getElementById("pane_"+lastPane).style.display = "none";
		document.getElementById("pane_"+num).style.display = "block";
	}
	
	function init() {				
		var lastTab = document.getElementById("tab_"+document.frm_ebooking.last_pane.value);
		lastTab.style.backgroundColor = foreground;
		lastTab.style.color = background;
		lastTab.style.cursor = 'none';
	}
	
	function getCalendarFor(field) {		
		var cal = new calendar2(field);
		cal.year_scroll = true;
		cal.time_comp = false;
		cal.popup();				
	}
	
	function getCalendarForId(_id) {		
		var field = document.getElementById(_id);
		var cal = new calendar2(field);				
		cal.year_scroll = true;
		cal.time_comp = false;
		cal.popup();
	}

	function singleSectorModeChanged(_mode) {	
		
		if(_mode==1) {
			//document.getElementById('return_date_span').style.visibility = 'hidden';
			direction = "onewaytravel";	
			document.getElementById('day_to').disabled = true;
			document.getElementById('month_year_to').disabled = true;			
		} else {
			//document.getElementById('return_date_span').style.visibility = 'visible';										
			//var departure_dt_str = document.frm_ebooking.departure_date_0.value;
			//var tmp_dt = strToDate(departure_dt_str);					
			//tmp_dt = getOffsettedDateForDate(2,tmp_dt);
			//document.frm_ebooking.return_date.value = 
			//							(tmp_dt.getDate()<10? '0'+tmp_dt.getDate():tmp_dt.getDate())+
			//							'-'+months_abbr[tmp_dt.getMonth()]+
			//							'-'+tmp_dt.getFullYear();		
		
			direction = "returntravel";
			document.getElementById('day_to').disabled = false;
			document.getElementById('month_year_to').disabled = false;			
		}	
	
	}
	
	
	function strToDate(dt_str) {
		var str = new String(trim(dt_str));
		var splitString = str.split("-")	
		var new_dt = new Date(
							Number(splitString[2]),
							getMonthIndexForAbbr(splitString[1]),
							Number(splitString[0]) );				
		return new_dt
	}
	
	function trim(value) {
		var temp = value;
		var obj = /^(\s*)([\W\w]*)(\b\s*$)/;
		if (obj.test(temp)) { temp = temp.replace(obj, '$2'); }
		var obj = /  /g;
		while (temp.match(obj)) { temp = temp.replace(obj, " "); }
		return temp;
	}

			
	function getOffsettedDateForDate(days,dt) {
		return new Date(dt.getTime() + days*24*60*60*1000);
	}
	
	function getMonthIndexForAbbr(month_str) {
		var _tmp = new String(month_str).toUpperCase();
		for(var _cnt=0;_cnt<12;_cnt++)
			if(_tmp==months_abbr[_cnt])
				return _cnt;					
	}
	
	function addSector() {
		if(check_num_sectors) {
			if(Number(document.getElementById("num_ms_sectors").value)==5) {
				alert("The maximum number of allowed destinations is 5. No more can be added");
				return;
			}
		}
		else
			check_num_sectors = true;
		
		var ms_table = document.getElementById("ms_table");
		var this_index = ms_table.rows.length-2;
		var prev_row = ms_table.rows[this_index-1];				
		var new_row = ms_table.insertRow(this_index);

		new_row.id = 'ms_table_row_guid_'+ms_table_row_guid;

		var cell_from = new_row.insertCell(0);
		var cell_to = new_row.insertCell(1);
		
		/*constructing the from and to cells*/				
		var from_select = document.createElement("select");				
		var to_select = document.createElement("select");
		
		var citiesOption = document.getElementById("to_1").options
		var i = citiesOption.length;
		var tmp1,tmp2,txt1,txt2;
		for(j=0;j<i;j++) {
			tmp1 = document.createElement("option");
			tmp2 = document.createElement("option");
			tmp1.appendChild(document.createTextNode(citiesOption[j].text));
			tmp2.appendChild(document.createTextNode(citiesOption[j].text));										
			tmp1.value = citiesOption[j].value;
			tmp2.value = citiesOption[j].value;
			to_select.appendChild(tmp1);
			from_select.appendChild(tmp2);					
		}
		from_select.selectedIndex = document.getElementById("to_"+(this_index-1)).selectedIndex;
						
		from_select.id = "from_" +this_index;
		to_select.id   = "to_"   +this_index;
		from_select.name = "from_" +this_index;
		to_select.name   = "to_"   +this_index;
		from_select.className = 'text1';
		to_select.className = 'text1';
		cell_from.appendChild(from_select);
		cell_to.appendChild(to_select);
						
		/*constructing the calendar cell*/
		var cell_calendar = new_row.insertCell(2);				
		cell_calendar.innerHTML = "<a href='javascript:getCalendarForId(\"departure_date_guid_"+ms_table_row_guid+"\")'><img border=0 alt='Open Calendar' src='images/calendar.gif' /></a>";
						
		/*constructing the leaving on cell*/
		var cell_leaving_on = new_row.insertCell(3);
		cell_leaving_on.innerHTML = "<input type='text' readonly id='departure_date_guid_"+ms_table_row_guid+"' name='departure_date_"+this_index+"' class='text1' size='11' maxlength='11' onkeydown='javascript:{if(event.keyCode==13) getCalendarFor(document.getElementById(\"departure_date_guid_"+ms_table_row_guid+"\"))}'   onclick='javascript:getCalendarForId(\"departure_date_guid_"+ms_table_row_guid+"\")'/>";
		cell_leaving_on.align = "right";
		cell_leaving_on.valign = "top";
		var dt_tmp;				
		if(trim(prev_row.cells[3].firstChild.value)=='')
			dt_tmp = strToDate(sdt_str);
		else
			dt_tmp = strToDate(prev_row.cells[3].firstChild.value);				
		dt_tmp = getOffsettedDateForDate(2,dt_tmp);				
		document.getElementById('departure_date_guid_'+ms_table_row_guid).value = 
										(dt_tmp.getDate()<10? '0'+dt_tmp.getDate():dt_tmp.getDate()) +
										'-'+months_abbr[dt_tmp.getMonth()]+
										'-'+dt_tmp.getFullYear();								
					
		/*constructing the remove cell*/													
		var cell_remove = new_row.insertCell(4);
		var row_id = 'ms_table_row_guid_'+ms_table_row_guid;
		var tmp_str = "href='javascript:deleteRowById(\""+row_id+"\")'";				
		cell_remove.innerHTML = 
			"<a "+tmp_str+"><img alt='Drop' src='images/delete.gif' border=0/>";
		ms_table_row_guid++;
		var num_ms_sectors = document.getElementById("num_ms_sectors");
		num_ms_sectors.value++;
		
		try{document.getElementById("_div").doScroll("pageDown");}catch(err){}
	}
	
	function deleteRowById(row_id) {			
		var ms_table_row = document.getElementById(row_id);
		var ms_table = document.getElementById("ms_table");
		var _index = ms_table_row.rowIndex;
		ms_table.deleteRow(_index);
		var num_ms_sectors = document.getElementById("num_ms_sectors");
		num_ms_sectors.value--;
		var total_rows = document.getElementById('ms_table').rows.length;
		var elem;
		for(var i=_index+1;i<(total_rows-1);i++) {
			elem = document.getElementById('to_'+i);					
			elem.id = 'to_'+(i-1);
			elem.name = 'to_'+(i-1);
			
			elem = document.getElementById('from_'+i);					
			elem.id = 'from_'+(i-1);
			elem.name = 'from_'+(i-1);
			
			elem = ms_table.rows[i-1].cells[3].firstChild;
			elem.name = 'departure_date_'+(i-1);
		}
		//document.getElementById("_div").doScroll("pageDown");
		try{document.getElementById("_div").doScroll("pageDown");}catch(err){}
	}
	
	// Ebooking_select.aspx
	
	function fs_proceed() {				
		document.forms[0].target = "_self";
		if(document.forms[0].__VIEWSTATE!=null) {
			document.forms[0].__VIEWSTATE.name = 'void';
			document.forms[0].__VIEWSTATE.value = '';
		}
		document.forms[0].action = eb_step3;
		document.forms[0].submit();
	}
	
	function fs_modify_search() {
		document.forms[0].target = "_self";
		if(document.forms[0].__VIEWSTATE!=null) {
			document.forms[0].__VIEWSTATE.name = 'void';
			document.forms[0].__VIEWSTATE.value = '';
		}
		document.forms[0].action = eb_step1;				
		document.forms[0].submit();
	}			
	
	function info_modify_search() {
		if(document.frm_info.__VIEWSTATE!=null) {
			document.frm_info.__VIEWSTATE.name = 'void';
			document.frm_info.__VIEWSTATE.value = '';
		}
		document.frm_info.action = eb_step1;
		document.frm_info.submit();
	}
	
	function info_change_flights() {
		if(document.forms[0].__VIEWSTATE!=null) {
			document.forms[0].__VIEWSTATE.name = 'void';
			document.forms[0].__VIEWSTATE.value = '';
		}
		document.forms[0].action = eb_step2;
		document.forms[0].submit();
	}
	
	function pnr_modify_search() {
		if(document.frm_pnr.__VIEWSTATE!=null) {
			document.frm_pnr.__VIEWSTATE.name = 'void';
			document.frm_pnr.__VIEWSTATE.value = '';
		}
		document.frm_pnr.action = eb_step1;
		document.frm_pnr.submit();
	}
	
	function pnr_change_flights() {
		if(document.forms[0].__VIEWSTATE!=null) {
			document.forms[0].__VIEWSTATE.name = 'void';
			document.forms[0].__VIEWSTATE.value = '';
		}
		document.forms[0].action = eb_step2;
		document.forms[0].submit();
	}
	
	function fs_weekly_search() {
		document.forms[0].target = "_self";
		if(document.forms[0].__VIEWSTATE!=null) {
			document.forms[0].__VIEWSTATE.name = 'void';
			document.forms[0].__VIEWSTATE.value = '';
		}
		document.forms[0].action = 'FlightScheduleWeekly.aspx';
		displayProcessing();				
		document.forms[0].submit();
	}
		
	function pnr_edit_info() {
		if(document.forms[0].__VIEWSTATE!=null) {
			document.forms[0].__VIEWSTATE.name = 'void';
			document.forms[0].__VIEWSTATE.value = '';
		}
		document.forms[0].action = eb_step3;
		document.forms[0].submit();
	}
	
	function retry() {
		document.forms[0].action = eb_step2;
		document.forms[0].submit();
	}
	
	function back_to_fare() {
		//window.location = eb_fare;
		if(document.forms[0].__VIEWSTATE!=null) {
			document.forms[0].__VIEWSTATE.name = 'void';
			document.forms[0].__VIEWSTATE.value = '';
		}
		document.forms[0].action = eb_fare;
		document.forms[0].submit();
	}
	
	function info_proceed() {
		if(validateInfo()) {
			if(document.forms[0].__VIEWSTATE!=null) {
				document.forms[0].__VIEWSTATE.name = 'void';
				document.forms[0].__VIEWSTATE.value = '';
			}
			document.forms[0].action = eb_step4;
			displayProcessing();
			document.forms[0].submit();
		}
	}
	
	
	/*
	==================================================================
	LTrim(string) : Returns a copy of a string without leading spaces.
	==================================================================
	*/
	function LTrim(str)
	/*
	PURPOSE: Remove leading blanks from our string.
	IN: str - the string we want to LTrim
	*/
	{
	var whitespace = new String(" \t\n\r");

	var s = new String(str);

	if (whitespace.indexOf(s.charAt(0)) != -1) {
		// We have a string with leading blank(s)...

		var j=0, i = s.length;

		// Iterate from the far left of string until we
		// don't have any more whitespace...
		while (j < i && whitespace.indexOf(s.charAt(j)) != -1)
			j++;

		// Get the substring from the first non-whitespace
		// character to the end of the string...
		s = s.substring(j, i);
	}
	return s;
	}

	/*
	==================================================================
	RTrim(string) : Returns a copy of a string without trailing spaces.
	==================================================================
	*/
	function RTrim(str)
	/*
	PURPOSE: Remove trailing blanks from our string.
	IN: str - the string we want to RTrim

	*/
	{
	// We don't want to trip JUST spaces, but also tabs,
	// line feeds, etc.  Add anything else you want to
	// "trim" here in Whitespace
	var whitespace = new String(" \t\n\r");

	var s = new String(str);

	if (whitespace.indexOf(s.charAt(s.length-1)) != -1) {
		// We have a string with trailing blank(s)...

		var i = s.length - 1;       // Get length of string

		// Iterate from the far right of string until we
		// don't have any more whitespace...
		while (i >= 0 && whitespace.indexOf(s.charAt(i)) != -1)
			i--;


		// Get the substring from the front of the string to
		// where the last non-whitespace character is...
		s = s.substring(0, i+1);
	}

	return s;
	}

	/*
	=============================================================
	Trim(string) : Returns a copy of a string without leading or trailing spaces
	=============================================================
	*/
	function LRTrim(str)
	/*
	PURPOSE: Remove trailing and leading blanks from our string.
	IN: str - the string we want to Trim

	RETVAL: A Trimmed string!
	*/
	{
		return RTrim(LTrim(str));
	}
	
	
	var processingWindow = null;
	function displayProcessing() {
		var w = 400;
		var h = 150;
		if(processingWindow !=null) {
			processingWindow.close();					
		}
		var _top = screen.availHeight/2-(h/2);
		var _left = screen.availWidth/2-(w/2);
		processingWindow = window.open(processing_page,'pw','top='+_top+',left='+_left+',width='+w+',height='+h+',scrollbars=no');
		processingWindow.focus();
		return true;
	}
	function stopDisplayProcessing() {
				if(processingWindow!=null)
					processingWindow.close();
			}
	
	function pnrDetails(_pnr) {
		document.frm_pnr.pnr.value = _pnr;
		document.frm_pnr.submit();
	}

	<!-- TWO STEPS TO INSTALL DATE MENU:

	<!-- Original:  Ben McFarlin (mcfarlin@netscape.net) -->
	<!-- Web Site:  http://sites.netscape.net/mcfarlin -->

	<!-- This script and many more are available free online at -->
	<!-- The JavaScript Source!! http://javascript.internet.com -->
	
	function populate(y_id,m_id,d_id) {
		var year_elem = document.getElementById(y_id);
		var month_elem = document.getElementById(m_id);
		var day_elem = document.getElementById(d_id);
		timeA = new Date(year_elem.options[year_elem.selectedIndex].text,month_elem.options[month_elem.selectedIndex].value,1);
		timeDifference = timeA - 86400000;
		timeB = new Date(timeDifference);
		var daysInMonth = timeB.getDate();
		for (var i = 0; i < day_elem.length; i++) {
			day_elem.options[0] = null;
		}
		for (var i = 0; i < daysInMonth; i++) {
			day_elem.options[i] = new Option(i+1);
		}
		day_elem.options[0].selected = true;
	}
	
	function fs_calculateFares() {				
		//var win = window.open('','Fare_Window','top=2500,left=2500,toolbar=no,menubar=no,width=592,height=550,scrollbars=yes');
		displayProcessing();
		//document.frm_flight_schedule.target = 'Fare_Window';
		document.frm_flight_schedule.action = 'Ebooking_Fares_Inline.aspx';				
		document.frm_flight_schedule.__VIEWSTATE.value = '';
		document.frm_flight_schedule.__VIEWSTATE.name = 'void';
		document.frm_flight_schedule.submit();				
	}
	function fs_calculateFares_displayMessage() {
		if(confirm('It is hereby informed that passengers must check-in 2 hours before flight departure and \ncheck-in counter closes 30 min. before flight departure.\nKindly make sure that the flight(s) you have selected allow you to reach airport well in time.')) 
		{
			//var win = window.open('','Fare_Window','top=2500,left=2500,toolbar=no,menubar=no,width=592,height=550,scrollbars=yes');			
			//document.frm_flight_schedule.target = 'Fare_Window';
			document.frm_flight_schedule.action = 'Ebooking_Fares_Inline.aspx';				
			document.frm_flight_schedule.__VIEWSTATE.value = '';
			document.frm_flight_schedule.__VIEWSTATE.name = 'void';		
			document.frm_flight_schedule.submit();
			displayProcessing();
		}
	}

	function showDoc(name) {
		
	}
	
	function payOnline() {
		if(!document.getElementById('cb_ofp').checked) {
			alert('You must agree to PIA\'s Online Fare Policy in order to pay online.');
			return;
		}
		if(!document.getElementById('cb_pp').checked) {
			alert('You must agree to PIA\'s Privacy Policy in order to pay online.');
			return;
		}
		if(!document.getElementById('cb_tou').checked) {
			alert('You must agree to PIA\'s Terms of Use in order to pay online.');
			return;
		}
		document.forms[0].action = eb_step4;	
		document.forms[0].submit();
	}
	
	var preallocationWindow = null;
	function preallocateSeats(fltNum, fltDate, removeSeat) {		
		var w = 650;
		var h = 550;
		
		if(removeSeat == '1')
		{	
			if(confirm('Are you sure you want to Deallocate Seat(s).')) 
			{
				document.getElementById('flt_'+ fltNum +'_'+ fltDate + '_Seat_Remove').value = '1';	
			}
			else 
				return;
		}
		
		if(preallocationWindow !=null) {
			preallocationWindow.close();					
		}
		var _top = screen.availHeight/2-(h/2);
		var _left = screen.availWidth/2-(w/2);
		preallocationWindow = window.open('','paw','top='+_top+',left='+_left+',width='+w+',height='+h+',scrollbars=yes');
		document.frm_pnr.action = 'Seatmap.aspx?flt='+fltNum + '&flt_Date=' + fltDate;				
		document.frm_pnr.target = "paw";
		if(document.frm_pnr.__VIEWSTATE!=null) {
			document.frm_pnr.__VIEWSTATE.name = 'void';
			document.frm_pnr.__VIEWSTATE.value = '';
		}
		document.frm_pnr.submit();
		stopDisplayProcessing();
		preallocationWindow.focus();
	}
	
	function modifyPaymentDetails() {
		document.forms[0].action = eb_payment;
		if(document.forms[0].__VIEWSTATE !=null)
			document.forms[0].__VIEWSTATE.name = 'void';
		//alert(document.forms[0].action)
		//alert('--');
		document.forms[0].submit();
	}
	
	var pnrWin;
	function printPnr() {
		var w = 700;
		var h = 500;
		if(pnrWin !=null) {
			pnrWin.close();					
		}
		var _top = screen.availHeight/2-(h/2);
		var _left = screen.availWidth/2-(w/2);				
		pnrWin = window.open('','pnrWin','top='+_top+',left='+_left+',width='+w+',height='+h+',scrollbars=yes,resizable=false');
		pnrWin.focus();
		document.forms[0].action = eb_print_pnr;
		document.forms[0].target = 'pnrWin';
		document.forms[0].submit();
	}