tabslvr1= new Image();
tabslvr1.src = "graphics/slvr_tab_on.gif"
tabslvr2= new Image();
tabslvr2.src = "graphics/slvr_tab_rollover.gif"

taby3_1= new Image();
taby3_1.src = "graphics/y3_tab_on.gif"
taby3_2= new Image();
taby3_2.src = "graphics/y3_tab_rollover.gif"

function emailCheck (emailStr) {
	var emailPat=/^(.+)@(.+)$/;
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]";
	var validChars="\[^\\s" + specialChars + "\]";
	var quotedUser="(\"[^\"]*\")";
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
	var atom=validChars + '+';
	var word="(" + atom + "|" + quotedUser + ")";
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
	var matchArray=emailStr.match(emailPat);
	if (matchArray==null) {
	    alert("Email address seems incorrect (check @ and .'s)");
	    return false;
	}
	var user=matchArray[1];
	var domain=matchArray[2];
	if (user.match(userPat)==null) {
	    alert("The username doesn't seem to be valid.");
	    return false;
	}
	var IPArray=domain.match(ipDomainPat);
	if (IPArray!=null) {
	      for (var i=1;i<=4;i++) {
	        if (IPArray[i]>255) {
	            alert("Destination IP address is invalid!");
		        return false;
	        }
	    }
	    return true;
	}
	var domainArray=domain.match(domainPat);
	if (domainArray==null) {
	    alert("The domain name doesn't seem to be valid.");
	    return false;
	}
	var atomPat=new RegExp(atom,"g");
	var domArr=domain.match(atomPat);
	var len=domArr.length;
	if ((domArr[domArr.length-1] != "info") &&
	    (domArr[domArr.length-1] != "name") &&
	    (domArr[domArr.length-1] != "arpa") &&
	    (domArr[domArr.length-1] != "coop") &&
	    (domArr[domArr.length-1] != "aero")) {
	        if (domArr[domArr.length-1].length<2 ||
	            domArr[domArr.length-1].length>3) {
	                alert("The address must end in a three-letter domain, or two letter country.");
	                return false;
	        }
	}
	if (len<2) {
	   var errStr="This address is missing a hostname!";
	   alert(errStr);
	   return false;
	}
	return true;
}
function UPTvalidateform(thisform) {
	$ok=0;
	for (var i=0; i < thisform.val_11.length; i++) {
		if (thisform.val_11[i].checked=="1") {   
			$ok=1;
			break;
		}
	}
	if ($ok==0) {  
		alert("Please enter a value for Gender");
	  return(true);
	 }
	if (emailCheck(thisform.email.value)) {	
        if (document.getElementById('unsubscribe') &&
			!document.getElementById('unsubscribe').checked) {
		    	alert('Thank you for signing up!');
        } else {
            alert('Thank you for signing up!');
        }
		return false;
	} else {
		return true;
	}
}