// JavaScript Document
function checkOnline(emptyUserName, emptyTel, correctEmailFormat, emptyContent, operateFail, tryOperate)
{
	var message = '';
	if('' == document.myform.username.value)
	{
		message += emptyUserName;
	}
	if('' == document.myform.telephone.value)
	{
		message += emptyTel;
	}
	
	var patternEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;
 	var email =  document.myform.email.value;
	if('' == email || !patternEmail.test(email))
	{
		message += correctEmailFormat;
	}
	if('' == document.myform.onlinecontent.value)
	{
		message += emptyContent;
	}
	if('' != message)
	{
		alert(operateFail+message+tryOperate);
		return false
	}
	return true;
}

function checkSearch()
{
	if('' == document.searchForm.searchkeyword.value)
	{
		return false;
	}
	return true;
}