function toggleCalendar(objname){
	var DivDisplay = document.getElementById(objname).style;
	if (DivDisplay.display  == 'none') {
	  DivDisplay.display = 'block';
	}else{
	  DivDisplay.display = 'none';
	}
}

function setValue(objname, d){
	document.getElementById(objname).value = d;

	var dp = document.getElementById(objname+"_dp").value;
	if(dp == true){
		var date_array = d.split("-");
		document.getElementById(objname+"_day").value = date_array[2];
		document.getElementById(objname+"_month").value = date_array[1];
		document.getElementById(objname+"_year").value = date_array[0];
		
		toggleCalendar('div_'+objname);
	}
}

function tc_setDay(objname, dvalue, path){
	var obj = document.getElementById(objname);
	var date_array = obj.value.split("-");
	
	//check if date is not allow to select
	if(!isDateAllow(objname, dvalue, date_array[1], date_array[0])){
		alert("This date is in the past, you cannot select it.");
		
		restoreDate(objname);
	}else{
		if(isDate(dvalue, date_array[1], date_array[0])){
			obj.value = date_array[0] + "-" + date_array[1] + "-" + dvalue;
			
			var obj = document.getElementById(objname+'_frame');
			
			var year_start = document.getElementById(objname+'_year_start').value;
			var year_end = document.getElementById(objname+'_year_end').value;
			var dp = document.getElementById(objname+'_dp').value;
			var smon = document.getElementById(objname+'_mon').value;
			var da1 = document.getElementById(objname+'_da1').value;
			var da2 = document.getElementById(objname+'_da2').value;
			var sna = document.getElementById(objname+'_sna').value;
			var aut = document.getElementById(objname+'_aut').value;
			var frm = document.getElementById(objname+'_frm').value;
			var tar = document.getElementById(objname+'_tar').value;
			
			obj.src = path+"calendar_form.php?objname="+objname.toString()+"&selected_day="+dvalue+"&selected_month="+date_array[1]+"&selected_year="+date_array[0]+"&year_start="+year_start+"&year_end="+year_end+"&dp="+dp+"&mon="+smon+"&da1="+da1+"&da2="+da2+"&sna="+sna+"&aut="+aut+"&frm="+frm+"&tar="+tar;
			
			obj.contentWindow.submitNow(dvalue, date_array[1], date_array[0]);
			
		}else document.getElementById(objname+"_day").selectedIndex = date_array[2];
	}
}

function tc_setMonth(objname, mvalue, path){
	var obj = document.getElementById(objname);
	var date_array = obj.value.split("-");
	
	//check if date is not allow to select
	if(!isDateAllow(objname, date_array[2], mvalue, date_array[0])){
		alert("This date is in the past, you cannot select it.\n\nIf you are trying to select the current month, ensure the day date is after todays date. \n\nIf you are trying to select a date which is a different year to the event date, select the year first.");
		
		restoreDate(objname);
	}else{
		if(isDate(date_array[2], mvalue, date_array[0])){
			obj.value = date_array[0] + "-" + mvalue + "-" + date_array[2];
		
			var obj = document.getElementById(objname+'_frame');
			
			var year_start = document.getElementById(objname+'_year_start').value;
			var year_end = document.getElementById(objname+'_year_end').value;
			var dp = document.getElementById(objname+'_dp').value;
			var smon = document.getElementById(objname+'_mon').value;
			var da1 = document.getElementById(objname+'_da1').value;
			var da2 = document.getElementById(objname+'_da2').value;
			var sna = document.getElementById(objname+'_sna').value;
			var aut = document.getElementById(objname+'_aut').value;
			var frm = document.getElementById(objname+'_frm').value;
			var tar = document.getElementById(objname+'_tar').value;
			
			obj.src = path+"calendar_form.php?objname="+objname.toString()+"&selected_day="+date_array[2]+"&selected_month="+mvalue+"&selected_year="+date_array[0]+"&year_start="+year_start+"&year_end="+year_end+"&dp="+dp+"&mon="+smon+"&da1="+da1+"&da2="+da2+"&sna="+sna+"&aut="+aut+"&frm="+frm+"&tar="+tar;
			
			obj.contentWindow.submitNow(date_array[2], mvalue, date_array[0]);
			
		}else document.getElementById(objname+"_month").selectedIndex = date_array[1];
	}
}

function tc_setYear(objname, yvalue, path){
	var obj = document.getElementById(objname);
	var date_array = obj.value.split("-");
	
	//check if date is not allow to select
	if(!isDateAllow(objname, date_array[2], date_array[1], yvalue)){
		alert("This date is in the past, you cannot select it.");
		
		restoreDate(objname);
	}else{	
		if(isDate(date_array[2], date_array[1], yvalue)){
			obj.value = yvalue + "-" + date_array[1] + "-" + date_array[2];
		
			var obj = document.getElementById(objname+'_frame');
			
			var year_start = document.getElementById(objname+'_year_start').value;
			var year_end = document.getElementById(objname+'_year_end').value;
			var dp = document.getElementById(objname+'_dp').value;
			var smon = document.getElementById(objname+'_mon').value;
			var da1 = document.getElementById(objname+'_da1').value;
			var da2 = document.getElementById(objname+'_da2').value;
			var sna = document.getElementById(objname+'_sna').value;
			var aut = document.getElementById(objname+'_aut').value;
			var frm = document.getElementById(objname+'_frm').value;
			var tar = document.getElementById(objname+'_tar').value;
			
			obj.src = path+"calendar_form.php?objname="+objname.toString()+"&selected_day="+date_array[2]+"&selected_month="+date_array[1]+"&selected_year="+yvalue+"&year_start="+year_start+"&year_end="+year_end+"&dp="+dp+"&mon="+smon+"&da1="+da1+"&da2="+da2+"&sna="+sna+"&aut="+aut+"&frm="+frm+"&tar="+tar;
			
			obj.contentWindow.submitNow(date_array[2], date_array[1], yvalue);
			
		}else document.getElementById(objname+"_year").value = date_array[0];
	}
}

function yearEnter(e){
	var characterCode;
	
	if(e && e.which){ //if which property of event object is supported (NN4)
		e = e;
		characterCode = e.which; //character code is contained in NN4's which property
	}else{
		e = event;
		characterCode = e.keyCode; //character code is contained in IE's keyCode property
	}
	
	if(characterCode == 13){ 
		//if Enter is pressed, do nothing		
		return true;
	}else return false;
}


// Declaring valid date character, minimum year and maximum year
var minYear=1900;
var maxYear=2100;

function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag){
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function is_leapYear(year){
	return (year % 4 == 0) ?
		!(year % 100 == 0 && year % 400 != 0)	: false;
}

function daysInMonth(month, year){
	var days = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
	return (month == 2 && is_leapYear(year)) ? 29 : days[month-1];
}
	
function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
   } 
   return this
}

function isDate(strDay, strMonth, strYear){
/*
	//bypass check date	
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter a valid month")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || day > daysInMonth(month, year)){
		alert("Please enter a valid day")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
		return false
	}*/
	return true
}

function isDateAllow(objname, strDay, strMonth, strYear){	
	var da1 = document.getElementById(objname+"_da1").value;
	var da2 = document.getElementById(objname+"_da2").value;
	
	if(parseInt(strDay)>0 && parseInt(strMonth)>0 && parseInt(strYear)>0){	
		if(da1 || da2){
			var date2Set = new Date();
			date2Set.setFullYear(parseInt(strYear), parseInt(strMonth), parseInt(strDay));
			
			if(da1 && da2){
				var da1Arr = da1.split('-', 3);			
				var da2Arr = da2.split('-', 3);
				
				var da1Date=new Date();
				da1Date.setFullYear(parseInt(da1Arr[0]),parseInt(da1Arr[1]),parseInt(da1Arr[2]));
							
				var da2Date=new Date();
				da2Date.setFullYear(parseInt(da2Arr[0]),parseInt(da2Arr[1]),parseInt(da2Arr[2]));
				
				return (date2Set>=da1Date && date2Set<=da2Date) ? true : false;
			}else if(da1){
				var da1Arr = da1.split('-', 3);			
				
				var da1Date=new Date();
				da1Date.setFullYear(da1Arr[0],da1Arr[1],da1Arr[2]);
							
				return (date2Set>=da1Date) ? true : false;
			}else{
				var da2Arr = da2.split('-', 3);			
				
				var da2Date=new Date();
				da2Date.setFullYear(da2Arr[0],da2Arr[1],da2Arr[2]);
				
				alert(date2Set);
				alert(da2Date);
				
				return (date2Set<=da2Date) ? true : false;
			}
		}else return true;
	}else return true; //always return true if date not completely set
}

function restoreDate(objname){
	//get the store value
	var storeValue = document.getElementById(objname).value;
	var storeArr = storeValue.split('-', 3);
	
	//set it
	document.getElementById(objname+'_day').value = storeArr[2];
	document.getElementById(objname+'_month').value = storeArr[1];
	document.getElementById(objname+'_year').value = storeArr[0];
}