// JavaScript Document

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

/* ------------------- This Validates Email Addresses --------------------- */

function validate_email(field,alerttxt)
{
with (field)
  {
  apos=value.indexOf("@");
  dotpos=value.lastIndexOf(".");
  if (apos<1||dotpos-apos<2)
    {alert(alerttxt);return false;}
  else {return true;}
  }
}

function validate_form(thisform)
{
with (thisform)
  {
  if (validate_email(Email,"Please enter a valid e-mail address")==false)
    {Email.focus();return false;}
  }
}