function normRoll(imgname, imgsrc) {
	imgsrc = "img/" + imgsrc;
	document.images[imgname].src = imgsrc;
	return true;
}

// Email Validation -- Error Checking

function emailvalidation(entered, alertbox) {
	with (entered) {
		apos=value.indexOf("@");
		dotpos=value.lastIndexOf(".");
		lastpos=value.length-1;
		if (apos<1 || dotpos-apos<2 || lastpos-dotpos>3 || lastpos-dotpos<2) {
			if (alertbox) {
				alert(alertbox);
			} 
			return false;
		} else {
			return true;
		}
	}
}

function emptyvalidation(entered, alertbox) {
	with (entered) {
		if (value==null || value=="" || value==0) {
			if (alertbox!="") {
				alert(alertbox);
			} return false;
		} else {
			return true;
		}
	}
}