function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		what_over = newImage("images/what-over.gif");
		eligibility_over = newImage("images/eligibility-over.gif");
		healthcoverage_over = newImage("images/healthcoverage-over.gif");
		financial_over = newImage("images/financial-over.gif");
		team_over = newImage("images/team-over.gif");
		testimonials_over = newImage("images/testimonials-over.gif");
		education_over = newImage("images/education-over.gif");
		resources_over = newImage("images/resources-over.gif");
		privacy_over = newImage("images/privacybutton-over.gif");
		contact_over = newImage("images/contactbutton-over.gif");
		login_over = newImage("images/loginbutton-over.gif");
		preloadFlag = true;
	}
}
function validate( form ) {
  // Validate the data in the form, then jump to benefitcalc.htm
  // passing the variables as we go
  var provcode  = form.province.selectedIndex;
  var netincome = form.netincome.value;
  var medical   = form.medicalexpenses.value;
  if( netincome == 0 || medical == 0 ) {
      alert( "Please enter values for net income, and medical expenses before continuing" );
      return;
  }
  var dollarsignnet = netincome.substring(0,1);
  var dollarsignmed = medical.substring(0,1);
  var commasnet = netincome.indexOf(",");
  var commasmed = medical.indexOf(",");
  if( dollarsignnet == "$" || dollarsignmed == "$" || dollarsignnet == "A" || dollarsignmed == "A") {
      alert( "Please do not use $ or other alpha characters for net income, and medical expenses" );
      return;
  }
  if( commasnet >= 1 || commasmed >= 1 ) {
      alert( "Please do not use commas or other alpha characters for net income, and medical expenses" );
      return;
  }
  location = "benefitcalc.php?provcode=" + provcode + "&netincome=" + netincome + "&medical=" + medical;
}