var dtCh= "/";
var minYear=1910;
var maxYear=minYear+149;
    
    //Function to Convert the date in valid format 
    //for use in Date Object.
    function twdchkdate(objName,dt) 
    {

		var strDate;
		var strDateArray;
		var strDay;
		var strMonth;
		var strYear;
		var intday;
		var intMonth;
		var intYear;
		var bloopercaught = false;
		var twdfielddate = objName;
		var strSeparatorArray = new Array("-"," ","/",".");
		var intElementNr;
		var err = 0;
		var strMonthArray = new Array(12);
		strMonthArray[0] = "Jan";
		strMonthArray[1] = "Feb";
		strMonthArray[2] = "Mar";
		strMonthArray[3] = "Apr";
		strMonthArray[4] = "May";
		strMonthArray[5] = "Jun";
		strMonthArray[6] = "Jul";
		strMonthArray[7] = "Aug";
		strMonthArray[8] = "Sep";
		strMonthArray[9] = "Oct";
		strMonthArray[10] = "Nov";
		strMonthArray[11] = "Dec";
		strDate = twdfielddate.value;
		if (strDate.length < 1)
		{
			return true;
		}
		for (intElementNr = 0; intElementNr < strSeparatorArray.length; intElementNr++) 
		{
			if (strDate.indexOf(strSeparatorArray[intElementNr]) != -1) 
			{
				strDateArray = strDate.split(strSeparatorArray[intElementNr]);
				if (strDateArray.length != 3) 
				{
					err = 1;
					return false;
				}
				else
				{
				strDay = strDateArray[0];
				strMonth = strDateArray[1];
				strYear = strDateArray[2];
				}
				
			}
		}
		intday = parseInt(strDay, 10);
		intMonth = parseInt(strMonth, 10);
		intYear = parseInt(strYear, 10);
		dt = intday + " " + strMonthArray[intMonth-1] + " " + strYear;
		return dt;
    }

    // function to Compare the two dates
    function CompareDate(sysdate, userdate) 
    {
   
	    var dtsys = new Date();
	    var dtuser = new Date();
	
    	dtsys = twdchkdate(sysdate,dtsys);
    	dtuser = twdchkdate(userdate,dtuser);
    	
	    if (Date.parse(dtuser) < Date.parse(dtsys)) 
	    {
		    return false;
	    }
	    else 
	    {
		    return true;
	    }

   }
  function CompareDateEqual(sysdate, userdate) 
    {
   
	    var dtsys = new Date();
	    var dtuser = new Date();
	
    	dtsys = twdchkdate(sysdate,dtsys);
    	dtuser = twdchkdate(userdate,dtuser);
    	
	    if (Date.parse(dtuser) <= Date.parse(dtsys)) 
	    {
		    return false;
	    }
	    else 
	    {
		    return true;
	    }

   }
   /*
	Copyright 2003 JavaScript-coder.com. All rights reserved.
*/


/**
 * DHTML date validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */
// Declaring valid date character, minimum year and maximum year


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 daysInFebruary (year){
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
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(dtStr)
    {    
    if(dtStr.length>0)
    {
	    var daysInMonth = DaysArray(12)
    		
	    var pos1=dtStr.indexOf(dtCh)
    	
	    var pos2=dtStr.indexOf(dtCh,pos1+1)
    	
	    var strDay=dtStr.substring(0,pos1)
	    var strMonth=dtStr.substring(pos1+1,pos2)
	    var strYear=dtStr.substring(pos2+1)
	    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 (pos1==-1 || pos2==-1){
		    alert("The date format should be : DD/MM/YYYY"+"\nExample: 31/03/2007")
		    return false
	    }
	    if (strMonth.length<1 || month<1 || month>12){
		    alert("Please enter a valid month")
		    return false
	    }
	    if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		    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
	    }
	    if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		    alert("Please enter a valid date")
		    return false
	    }
	  }
        return true
      
}

//Function to check all the checkboxes on a single click
function SelectAllCheckboxes(spanChk)
{
    
    // Added as ASPX uses SPAN for checkbox
    var oItem = spanChk.children;
    var theBox=(spanChk.type=="checkbox")?spanChk:spanChk.children.item[0];
    xState=theBox.checked;
    elm=theBox.form.elements;
    for(i=0;i<elm.length;i++)
    {
        if(elm[i].type=="checkbox" && elm[i].id!=theBox.id)
        {
            
            //elm[i].click();
            if(elm[i].checked!=xState)
            elm[i].click();
            //elm[i].checked=xState;
        }
    }
}


//To select at least one of the checkbox in Grid
function ValidateGridCheckboxSelection(msg)
    {
       
       var flag; 
       all=document.getElementsByTagName("input");// Getting an array of all the "INPUT" controls on the form.
			for(i=0;i<all.length;i++)
			{
                
				if(all[i].type=="checkbox")//Checking if it is a Checkbox
				{
				    
				    if(!(all[i].disabled)&& (all[i].checked))
					{
					  flag=true;  
					}
				}
			}
			if(!flag)
			{
			
			    alert(msg);
		    	return false;
		    }
		    else
		    {
		        return true;
		    }
    }
    
    
// Function Usage: This Function is used for to generate the Header at Print Time

function AddTHEAD(tableName)
 {
       var table = document.getElementById(tableName);
       if(table != null) 
       {
            
            var head = document.createElement("THEAD");
            head.style.display = "table-header-group";
            head.appendChild(table.rows[0]);
            table.insertBefore(head, table.childNodes[0]); 
       }
}