function checkEmail(emailvalue) {

			if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/.test(emailvalue)) {

				return true;

			}

				return false;

		}
function validateContact()
{
	var email;
	email = new String(document.frmContact.txtEmail.value); 
	
	if(document.frmContact.txtName.value=="")
	{
		alert('Please enter your name');
		document.frmContact.txtName.focus();
		return false;
	}	
	else if(email=="")
	{
		alert('Please enter your email address');
		document.frmContact.txtEmail.focus();
		return false;
	} 
	
	else if (!(checkEmail(document.frmContact.txtEmail.value))) {
		alert("Please enter a valid email address.");
		document.frmContact.txtEmail.focus();
		return false;
	}
	else if(document.frmContact.txtTele.value=="")
	{
		alert('Please enter your message');
		document.frmContact.txtTele.focus();
		return false;
	}	
}