function validateListForm(){
	var strErrMsg = "";
	strErrMsg = checkForEmpty(strErrMsg,'First_Name','a first name');
	strErrMsg = checkForEmpty(strErrMsg,'Last_Name','a last name');
	strErrMsg = checkForEmpty(strErrMsg,'Email_Address','an email address');
	if(strErrMsg!=""){
		alert(strErrMsg);
		return false;
	} else {
		return true;
	}
}

function checkForEmpty(strMsgString,elName,fieldLabel){
	if(document.getElementById(elName).value==''){
		strMsgString += 'Please enter '+fieldLabel+'\n';
	}							 
	return strMsgString;
}