function validateUser(){
	
	
	if(document.getElementById('Username').value == "")
	{
		alert('Please enter Username');
		document.getElementById('Username').focus();
		document.getElementById('Username').select();
		return false;
	}
	if(document.getElementById('Password').value == "")
	{
		alert('Please enter Password');
		document.getElementById('Password').focus();
		document.getElementById('Password').select();
		return false;
	}

}