// JavaScript Document
function checkEmptyChallengePage()
{

	var emailValidation = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
	//alert("hello");
	if(document.getElementById("email").value!="")
	{
		if(!(document.getElementById("email").value.match(emailValidation)))
		{
		alert("Please enter Valid Email Id.");
		document.getElementById("email").focus();
		return false;
		}
	}
	if(document.getElementById("phone").value.length >14 || document.getElementById("phone").value.length <8){
		
		//document.getElementById('telephone').value=document.getElementById('telephone').value.substring(0,13);
		alert("Invalid Phone Number!")
		document.getElementById('phone').focus();
		return false;
	}
}