// JavaScript Document

function validate() {	
	// Sets the initial error message
	var errorMessage = "Please complete the following fields: ";	
	// Check to see if a fields value has changed
	function checkField(inputName,defaultText) {
		if (document.getElementById("html_mail_form")[inputName].value==defaultText) {
			errorMessage = errorMessage + " [ " + defaultText +  " ] ";
			document.getElementById("html_mail_form")[inputName].className='error';
		}
	}
	// Input fields to check
	checkField("Name","");
	checkField("Mission","");
	checkField("Phone","");
	checkField("Email","");
	// Submits form if all required fields have been completed
	if (errorMessage == "Please complete the following fields: ") {
	return true;
	}
	// Alerts error message and kills submission
	else {
	alert("Please complete all fields in red");
	return false;
   	}
}