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) {
		abo_over = newImage("images/nav/abo-ON.gif");
		ass_over = newImage("images/nav/ass-ON.gif");
		eld_over = newImage("images/nav/eld-ON.gif");
		est_over = newImage("images/nav/est-ON.gif");
		eve_over = newImage("images/nav/eve-ON.gif");
		sma_over = newImage("images/nav/sma-ON.gif");
		glo_over = newImage("images/nav/glo-ON.gif");
		ont_over = newImage("images/nav/ont-ON.gif");				
		law_over = newImage("images/nav/law-ON.gif");
		pro_over = newImage("images/nav/pro-ON.gif");
		tax_over = newImage("images/nav/tax-ON.gif");									
		preloadFlag = true;
	}
}

function checkfields(){

if (document.forms["form1"].name.value==""){
        alert ("Name is required!");
        document.forms["form1"].name.focus();
        return false;
}

if (document.forms["form1"].email.value=="")
        {
                alert("Please enter a valid email address.");
                document.forms["form1"].email.focus();
                return false;
        }
        if (document.forms["form1"].email.value.indexOf("@")==-1)
        {
                alert("Please enter a valid email address.");
                document.forms["form1"].email.focus();
                return false;
        }
        else
        {
           substremail = document.forms["form1"].email.value.split("@")
           if (substremail.length > 1)
           {
              index = substremail[1].indexOf(".")
              if (index == -1)
              {
                 alert("Please enter a valid email address.");
                 document.forms["form1"].email.focus();
                 return false;
              }
          }
          else
          {
             alert("Please enter a valid email address.");
             document.forms["form1"].email.focus();
             return false;
          }
}
}