function blank(a) { if(a.value == a.defaultValue) a.value = ""; }
	function unblank(a) { if(a.value == "") a.value = a.defaultValue; }
	function isEmailValid(sEmail) 
	{
	if (sEmail.value == '' || sEmail.indexOf('.') == 0 || sEmail.indexOf('.') == -1 || sEmail.indexOf('@') == 0 || sEmail.indexOf('@') == -1 || sEmail.indexOf('.') == sEmail.length - 1 || sEmail.indexOf(',') >= 0) {
			return false;
		} else {
			return true;
		}
	}
	function validate_form(){
		
	if(document.contact_frm.name.value== ""){
		alert("Please enter your name.");
		document.contact_frm.name.focus();
		return false;
	}
	if(document.contact_frm.email.value== ""){
		alert("Please enter your E-mail.");
		document.contact_frm.email.focus();
		return false;
	}
	if(!(isEmailValid(document.contact_frm.email.value))){
		alert("Please enter valid E-mail.");
		document.contact_frm.email.focus();
		return false;
	}
	if(document.contact_frm.phone.value== ""){
		alert("Please enter your phone number.");
		document.contact_frm.phone.focus();
		return false;
	}
	return true;
	}