// Function is used to get the Id's of Controls passed to it.

// Global variable storing the ID of Control present in GridView on the top
   var ControlToValidateH;
// Global variable storing the ID of Control present in GridView on the bottom
   var ControlToValidateF;
// Global variable storing the starting offset of CheckBox Control present in GridView
   var Offset="";

	
function GetID(pControlToValidate,pControlHeader,pControlFooter)
{
    for (var i=0;i<document.Form1.elements.length;i++)
	{
	    var ControlId=document.Form1.elements[i].id;	    
	    var StartIndex=ControlId.lastIndexOf("_");
	    var EndIndex=ControlId.length;
	    var Id=ControlId.substring(StartIndex+1,EndIndex);
		var Index=ControlId.lastIndexOf("_ctl");
		
		if(Id==pControlHeader)
		{
		    ControlToValidateH=ControlId;
		}
		if(Id==pControlToValidate)
		{   
		    if(Offset=="")
		    {
		       Offset=ControlId.substring(Index+5,StartIndex);		      
		    }
		}
		if(Id==pControlFooter)
		{
		    ControlToValidateF=ControlId;		   	    
		}		
	}  
}

// Function is used to Select/DeSelect all the CheckBoxes present in GridView
function SelectAll(pGridViewName,pControlToValidate,pControlHeader,pControlFooter,pControlClicked)
{
    GetID(pControlToValidate,pControlHeader,pControlFooter);
	if(pControlClicked=='H')
	{
	    if(document.getElementById(ControlToValidateH).checked==true)
		{
		    for(var i=Offset;i<Number(totalcount)+Number(Offset);i++)
			{
			    if(i>9)
			    {
			        document.getElementById(pGridViewName+"_ctl"+i+"_"+pControlToValidate).checked=true;    	  
			    }
			    else
			    {
			        document.getElementById(pGridViewName+"_ctl0"+i+"_"+pControlToValidate).checked=true;    	  
			    }  
			}					
			document.getElementById(ControlToValidateF).checked=true; 
		}
		else if(document.getElementById(ControlToValidateH).checked==false )
		{
			for(var i=Offset;i<Number(totalcount)+Number(Offset);i++)
			{
			    if(i>9)
			    {
			        document.getElementById(pGridViewName+"_ctl"+i+"_"+pControlToValidate).checked=false;  	  
			    }
			    else
			    {
			        document.getElementById(pGridViewName+"_ctl0"+i+"_"+pControlToValidate).checked=false;
			    }				
			}					
		    document.getElementById(ControlToValidateF).checked=false; 
		}
	}
	else if(pControlClicked=='F')
	{	 
	    if(document.getElementById(ControlToValidateF).checked==true )
		{
		    for(var i=Offset;i<Number(totalcount)+Number(Offset);i++)
			{	
			    if(i>9)
			    {
			        document.getElementById(pGridViewName+"_ctl"+i+"_"+pControlToValidate).checked=true;  	  
			    }
			    else
			    {		
			        document.getElementById(pGridViewName+"_ctl0"+i+"_"+pControlToValidate).checked=true;
			    }
			}					
			document.getElementById(ControlToValidateH).checked=true; 
		}
		else if(document.getElementById(ControlToValidateF).checked==false )
		{
			for(var i=Offset;i<Number(totalcount)+Number(Offset);i++)
			{
			    if(i>9)
			    {
			        document.getElementById(pGridViewName+"_ctl"+i+"_"+pControlToValidate).checked=false;  	  
			    }
			    else
			    {		
				    document.getElementById(pGridViewName+"_ctl0"+i+"_"+pControlToValidate).checked=false;
				}
			}					
		    document.getElementById(ControlToValidateH).checked=false; 
		}
	}
}
			
//Function is used to display Confirmation Message on Clicking Enable,Disable and Delete button present in GridView		
function ConfirmationMessage(pGridViewName,pControlToValidate,pControlHeader,pControlFooter)
{
    GetID(pControlToValidate,pControlHeader,pControlFooter);
    var chkSelect;
   	for(var i=Offset;i<Number(totalcount)+Number(Offset);i++)
	{   
	    
	    if(i>9)
		{
		    chkSelect=document.getElementById(pGridViewName+"_ctl"+i+"_"+pControlToValidate)
		}
		else
		{	
			chkSelect=document.getElementById(pGridViewName+"_ctl0"+i+"_"+pControlToValidate)    
		}
	    if(chkSelect.checked==true)
		{
		    var agree=window.confirm('Are You Sure ?');
		    if(agree)
		    {
		        return true;
		    }
		    else
			{
			    for(var i=Offset;i<Number(totalcount)+Number(Offset);i++)
			    if(chkSelect.checked==true)
			    {
			        chkSelect.checked=false;
				}
				document.getElementById(ControlToValidateH).checked=false;
				document.getElementById(ControlToValidateF).checked=false;
				return false;
			}
        }
	}
	window.alert("Please Select Any Record !!!"); 
	return false;	
}


function ConfirmationMessageStatus(pGridViewName,pControlToValidate,pControlHeader,pControlFooter,pDropdownListHeader,pDropdownListFooter)
{
    GetID('',pDropdownListHeader,pDropdownListFooter);
    var ddlHeader=document.getElementById(ControlToValidateH).value
    var ddlFooter=document.getElementById(ControlToValidateF).value
	if(ddlHeader=="-Select Status-" && ddlFooter=="-Select Status-")
	{
	    window.alert("Please Select Status !!!");  
	    return false;   
	}
	else
	{	
	    return ConfirmationMessage(pGridViewName,pControlToValidate,pControlHeader,pControlFooter);
	}
}

function SelectSameInBothDDL(pGridViewName,pDropdownListHeader,pDropdownListFooter,Position)
{
    GetID('',pDropdownListHeader,pDropdownListFooter);
    var ddlHeader=document.getElementById(ControlToValidateH).value
    var ddlFooter=document.getElementById(ControlToValidateF).value
    if(Position=="H")
    {
        document.getElementById(ControlToValidateF).value=ddlHeader;
    }
    else
    {
        document.getElementById(ControlToValidateH).value=ddlFooter;
    }    
}


// This function validate Email string in a control whose ID passed as a parameter.
function ValidateEmail(ControlToValidate)
{
	try
	{
		var textValue=document.getElementById(ControlToValidate).value;
		
		//Declare regular expression
        var re = new RegExp('^.+@[^\.].*\.[a-z]{2,}$');

        if (textValue.match(re)) 
        {
            //allow postback to continue
            return true;
        } 
        else
        {
            //inform user that the Email ID is not valid
            alert("Invalid Email ID !!!");
        
            //Set the focus on non-compliant field
            document.getElementById(ControlToValidate).focus();
        
            //Prevent the postback
            return false;
        }
	}
	catch(err)
	{
		alert('Please check the Control ID pass in function ValidateEmail()');
	    return false;
	}
}



// Declaring valid date character, minimum year and maximum year
var dtCh= "/";
var minYear=2008;
var maxYear=2028;

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){
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strMonth=dtStr.substring(0,pos1)
	var strDay=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 : mm/dd/yyyy")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please Select valid date !")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please Select valid date !")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please Select valid date !")
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Please Select valid date !")
		return false
	}
return true
}

//Function to find Client System Timezone Offset
function TimezoneOffset(hidTimezoneOffset)
		{
		    var now = new Date();
		    var TimezoneOffset = -now.getTimezoneOffset();
//		    alert(TimezoneOffset);
		    document.getElementById(hidTimezoneOffset).value=TimezoneOffset;         
		}	


// Function to remove white spaces staring and ending of string
		
function trim(sString) 
{
    while (sString.substring(0,1) == ' ')
    {
        sString = sString.substring(1, sString.length);
    }
    while (sString.substring(sString.length-1, sString.length) == ' ')
    {
        sString = sString.substring(0,sString.length-1);
    }
    return sString;
}

// Function is used to prompt an alert when user directly close the application from browser's close button.
function handleWindowClose()
{
    if((window.event.clientX<0) || (window.event.clientY<0))
    {
        event.returnValue = "If you have made any changes to the fields without clicking the Save button, your changes will be lost.";
    }
}

// This function validate Numeric Value in a control whose ID passed as a parameter.
function ValidateNumeric(ControlToValidate)
{
	var textValue=document.getElementById(ControlToValidate).value;
	if(isNaN(textValue))
    {
        alert('Please Enter Numeric Value !!!');
        textValue="";
        document.getElementById(ControlToValidate).focus();
        return false;
    }
}

// This function validate Mobile No. in a control whose ID passed as a parameter.
function ValidateMobileNo(ControlToValidate)
{
	var textValue=document.getElementById(ControlToValidate).value;
	if(isNaN(textValue))
    {
        alert('Please Enter Numeric Value !!!');
        textValue="";
        document.getElementById(ControlToValidate).focus();
        return false;            
    }
    if(textValue.length<10)
    {
        alert('Mobile Number must be of 10 digits !!!');
        document.getElementById(ControlToValidate).focus();            
        return false; 
    }
    if(textValue.charAt(0)!="9")
    {
        alert('Mobile Number must be starts with 9 !!!');
        document.getElementById(ControlToValidate).focus();            
        return false;
    }  
}

// This function validate URL string in a control whose ID passed as a parameter.
function ValidateURL(ControlToValidate)
{
    try
	{
		var textValue=document.getElementById(ControlToValidate).value;
		
		//Declare regular expression
        var re = new RegExp('^(ftp|https?):\/\/+(www\.)?[a-z0-9\-\.]{3,}\.[a-z]{2}$');
        if (textValue.match(re)) 
        {
            //allow postback to continue
            return true;
        } 
        else
        {
            //inform user that the Email ID is not valid
            alert("Invalid URL !!!");
        
            //Set the focus on non-compliant field
            document.getElementById(ControlToValidate).focus();
        
            //Prevent the postback
            return false;
        }        
	}
	catch(err)
	{
		alert('Please check the Control ID pass in function ValidateURL()');
	    return false;
	}
}

// This function counts the characters of textbox and display left characters(using maxLength of textbox) in a label.
function CountCharacters(sourceTextBox, displayControl)
{   
    if(sourceTextBox != null && displayControl != null)
    {
		sourceTextBox = document.getElementById(sourceTextBox);
        displayControl = document.getElementById(displayControl);
        var maxLength = sourceTextBox.maxLength;
        if(sourceTextBox != null)
        {
            var len = sourceTextBox.value.length
            if (len<=maxLength) //if entered charcters less than the Maximum Limit.
            {
//                Shows Number of characters Remaining 
                displayControl.innerHTML = maxLength -len+" characters left";
            }
            else
            {
                sourceTextBox.value = sourceTextBox.value.substring(0, maxLength);
                return false;
            }
        }
    }
}