function callvalidation()	
	{
		obj = document.Contactus;
		
		if(obj.FullName.value=="")
		{
			alert("Name can not be blank.");
			obj.FullName.focus();
			return false;
		}		
		else if(!CheckEmail())
		{
			alert("Please enter valid email address.");
			obj.Emailid.focus();
			return false;
		}
		else if(CheckPhone()==false)
		{
			alert("Please enter valid phone number.");
			obj.ContactNo.focus();
			return false;
		}
		else
		{	
			obj.submit();			
			return true;
		}	
	}
	function CheckEmail()
	{

		var re = /\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/;
		if (obj.Emailid.value.search(re)==-1)
		{
			return false;
		}
		else
		{
			return true;
		}
	}

	function CheckPhone()
	{
		var re = /(^-?\d\d*\.\d*$)|(^-?\d\d*$)|(^-?\.\d\d*$)/;
		if (obj.ContactNo.value.search(re)==-1)
		{
			return false;
		}
		else
		{
			return true;
		}
	}