function validate(){
	var missing = "";
/*	for(var i = 0; i < document.forms[0].elements.length; i++){
		var frm = document.forms[0].elements[i];
		if(frm.name.indexOf("required") == 0){
			if(trim(frm.value) == ""){
				missing += frm.name.substring(9,frm.name.length) + ", ";
			}
		}
	}
	*/
	
	for(var i = 0; i < 5; i++){
		var frm = document.forms[0].elements[i];
		if(frm.name.indexOf("required") == 0){
			if(trim(frm.value) == ""){
				missing += frm.name.substring(8,frm.name.length) + ", ";
			}
		}
	}

	if(missing == ""){
		return true;
	}else{
		alert(missing + " are required.");
		return false;
	}
}


function trim(sInString) {
  sInString = sInString.replace( /^\s+/g, "" );// strip leading
  return sInString.replace( /\s+$/g, "" );// strip trailing
}