// Trim
function trim(eString) { return eString.replace(/(^[\s\u3000]*)|([\s\u3000]*$)/g, ""); }

// Search
function Search() {
var keyword=document.getElementById("keyword");
if (trim(keyword.value)=="") { alert("提示:请填写关键字!"); keyword.value=""; keyword.focus(); return false; }
if (keyword.value.length<1) { alert("提示:请填写关键字!"); keyword.focus(); return false; }
window.location.href="search.asp?search="+keyword.value;
}