function ValidateEmail(valor) 
{
    if (/\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/.test(valor))
	    return true;
    else
	    return false;
}  

function CustomValidatePhone(source, arguments)
{
    var ValidChars = "0123456789.()- ";
    var Char;
    incoming = document.getElementById(source.controltovalidate);
    if (incoming.value == "")
	{
		source.errormessage = 'Please, enter your Phone.';		
		incoming.focus();			    
		arguments.IsValid=false;
		return;
	}
	else
	{
        for (cont = 0; cont < incoming.value.length; cont++) 
        { 
            Char = incoming.value.charAt(cont); 
            if (ValidChars.indexOf(Char) == -1)
            {
                source.errormessage = 'Please, check your Phone.';
                incoming.focus();			    
                arguments.IsValid= false;
                return;
            }
        }
    }
    arguments.IsValid= true;
}


function CustomValidateEmail(source, arguments)
{
    if(arguments)
    {
        var Email = document.getElementById(source.controltovalidate);
        if (Email.value == "")
        {
	        source.errormessage = 'Please, enter your email.';
    	   
	        arguments.IsValid=false;
	        return;
        }
        else
        {
        if(!ValidateEmail(Email.value))
	        {
		        source.errormessage = "Please check the emails address.";
    		 
		        arguments.IsValid=false;
		        return;
	        }
        }
        arguments.IsValid=true;

    }    
}

function CustomValidateFirstName(source, arguments)
{

    var FirstName = document.getElementById(source.controltovalidate);
    if (FirstName.value == "")
    {
	    source.errormessage = 'Please, enter your first name.';
	   //FirstName.focus();
	    arguments.IsValid=false;
	    return;
    }		
    arguments.IsValid=true;
}

function CustomValidateLastName(source, arguments)
{

    var LastName = document.getElementById(source.controltovalidate);
    if (LastName.value == "")
    {
	    source.errormessage = 'Please, enter your last name.';
	    //LastName.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;
                }
            }
        }
       
    }    
}