var fieldstocheck = new Array();
fieldnames = new Array();
function checkform() {
	for (i=0;i<fieldstocheck.length;i++) {
		if (eval("document.subscribeform.elements['"+fieldstocheck[i]+"'].value") == "") {
		alert("Please enter your "+fieldnames[i]);
		eval("document.subscribeform.elements['"+fieldstocheck[i]+"'].focus()");
		return false;
		}
		}
		return true;
		}
		function addFieldToCheck(value,name) {
		fieldstocheck[fieldstocheck.length] = value;
		fieldnames[fieldnames.length] = name;
}