function validate( ) {
			var returnVal = true;
			var alertString = "";
			
			var firstName = document.contactForm.name_first.value;
			if(firstName == "") {
				returnVal = false;
				alertString += "First Name\n\n";
			}
			
			var lastName = document.contactForm.name_last.value;
			if(lastName == "") {
				returnVal = false;
				alertString += "Last Name\n\n";
			}
			
			var email = document.contactForm.email.value;
			if(email == "") {
				returnVal = false;
				alertString += "Email Address\n\n";
			}
			var comments = document.contactForm.comments.value;
			if(comments == "") {
				returnVal = false;
				alertString += "Comments\n\n";
			}
			
			if(alertString != "") {
				alert("Please make sure the following fields have a valid entry:\n\n" + alertString);
			}
			
			return returnVal;
		}