function form_validation(){
		var hh = document.enquiry;
		
		
			if(hh.name.value==""){
			alert("Please enter your name.");
			hh.name.focus();
			return false;
	}
		
	if(hh.email.value==""){
			alert("Please enter your email address.");
			hh.email.focus();
			return false;
	}
	if (echeck(hh.email.value)==false){
			alert("Invalid email address.");
			hh.email.focus();
			return false
		}
		
	
		if(hh.phone.value==""){
			alert("Please enter your phone.");
			hh.phone.focus();
			return false;
		}
		
		
		
		if(hh.message_type.value==""){
			alert("Please select a message type.");
			hh.message_type.focus();
			return false;
		}
		
		

	return true;
	}