function ValidateUpload(source, arguments){
        fupFile= document.getElementById(source.controltovalidate);
        arguments.IsValid=ValidFile(fupFile.value);
    }

    function ValidFile(value){
        var hddLargeContactUploadExtension=document.getElementById("hddLargeContactUploadExtension").value.toLowerCase();
	    var arrExtension=hddLargeContactUploadExtension.split(",");
	    var IsValid=false;
    	
	    var i=0;
	    for (i=0;i<arrExtension.length;i++) 
	    {
		    var pos=value.toLowerCase().indexOf(arrExtension[i]);
		    if (pos>=0)	{
			    IsValid=true;
			    break;
		    }										
    			
    		
	    }
	    return IsValid;
    }
    function ValidateCheckBoxListEmpty(source, arguments)
    {
        
        
        var IsValid=false;
        element= document.getElementById(source.controltovalidate);
        var chkBoxList = document.getElementById(element.value);
        var chkBoxCount= chkBoxList.getElementsByTagName("input");
        for(var i=0;i<chkBoxCount.length;i++)
        {
            if (chkBoxCount[i].checked) {
                IsValid=true;
                break;
            }
        }
        arguments.IsValid=IsValid;
    }
    
    function ValidatePhone(source, arguments)
    {
		    var ValidChars = "0123456789.()- ";
		    var IsCorrect=true;
		    var Char;
            var IsValid=false;
            incoming= document.getElementById(source.controltovalidate).value;
		    for (cont = 0; cont < incoming.length && IsCorrect == true; cont++) 
		    { 
		        Char = incoming.charAt(cont); 
		        if (ValidChars.indexOf(Char) == -1) {
		             arguments.IsValid= false;
		             return;
		        }
		    }
		    arguments.IsValid= true;
    }


function ValidateEmail(valor) 
    {
	    if (/\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/.test(valor))
		    return true;
	    else
		    return false;
    }  
function CustomValidateEmail(source, arguments)
{    
    if(arguments)
    {
        var Email = getElementContact(source.controltovalidate);
        if (Email.value == "")
	    {
		    source.errormessage = 'Please, enter your email.';
		    Email.focus();
		    arguments.IsValid=false;
		    return;
	    }
	    else
	    {
	    if(!ValidateEmail(Email.value))
		    {
			    source.errormessage = "Please check the emails address.";
			    Email.focus();
			    arguments.IsValid=false;
			    return;
		    }
	    }
        arguments.IsValid=true;
    
    }    
}


function ValidateComments(source, arguments)
{
    
    var Comment = getElementContact(source.controltovalidate);
    if (Comment.value == "")
	{
		source.errormessage = 'Please, enter your comments.';
		Comment.focus();
		arguments.IsValid=false;
		return;
	}		
    arguments.IsValid=true;
}

function getElementContact(name)
	{
	    var object = null;
	    var tbSmallContact=document.getElementById('tbContact'); 
	    for (var i=0; i<tbSmallContact.rows.length; i++)
        {
            for (var j=0; j<tbSmallContact.rows[i].cells.length; j++)
            {
                for (var k=0; k<tbSmallContact.rows[i].cells[j].childNodes.length; k++)
                {                
                    if(tbSmallContact.rows[i].cells[j].childNodes[k].id == name)
                    {
                       object = tbSmallContact.rows[i].cells[j].childNodes[k];
                       return object;
                    }
                }
            }
           
        }    
	}