function CheckSearch()
{
if($id("Text_Search").value.trim() =="" )
{
alert("搜索关键字不能为空！");
$id("Text_Search").focus();
return;
}
if($id("Text_Search").value.trim().BitLength() <= 3 )
{
alert("搜索关键字长度,不能少于2个汉字！");
$id("Text_Search").focus();
return ;
}
var s=$id("Text_Search").value.trim().replace(/\s+/g," ");
window.location.href='/newssearch.aspx?search='+escape(s);
}