var $=function(node){
	return document.getElementById(node);
}
//顯示相關(guān)搜索 和更新關(guān)鍵字?jǐn)?shù)據(jù)
function relShowUpdate(){

	var xmlhttp;
	try{
		xmlhttp = new XMLHttpRequest();
	}
	catch(e){
		xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
	}	
	xmlhttp.onreadystatechange = function(){
		if(xmlhttp.readyState == 4){
			if(xmlhttp.status == 200){
				var data = xmlhttp.responseText;
				$("relate").innerHTML= "相關(guān)搜索:" + data;
			}
		}
	}
	xmlhttp.open("POST","relShow.do",true);
	xmlhttp.setRequestHeader('Content-type','application/x-www-form-urlencoded');
	xmlhttp.send("");
}