function co_sendXMLHttpRequest(url, method, content) {
	var xmlobj = co_createXMLHttpRequest();
	xmlobj.open(method, url, false);
	xmlobj.send(content);
	return xmlobj;
}
function co_createXMLHttpRequest() {
	return createXMLHttpRequest();
}
// 返回Ajax对象
function createXMLHttpRequest() {
	var xmlHttp = null;
	if (window.ActiveXObject) {
		try {
			xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
		} catch (e) {
			xmlHttp = null;
		}

		if (xmlHttp == null) {
			try {
				xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
			} catch (e) {
				xmlHttp = null;
			}
		}
	} else if (window.XMLHttpRequest) {
		xmlHttp = new XMLHttpRequest();
	}

	return xmlHttp;
}

function request(paras){
	
	  var url = location.href; 
		//uid 由apache重写。不能从链接参数中取
		if(paras=="uid"){
			var hl = "http://".length;
			var begin = (url.substring(hl,url.length).indexOf("/")+hl);
			var temp = url.substring(begin+1,url.length);
			var uid = temp.substring(0,temp.indexOf("/"));
			var a = new Array("brank","comment","common","cowry","css","dressup","appearance","flash","images","img","IU","include",
							"js","log","message","prevail","product","ranking","recommend","recomend","search","servlet",
							"stat","stc","takke","test","transmission","user","vote","welcome","saasimg");
			for(var i=0;i<a.length;i++){
				if(a[i]==uid){
					return "";
				}
			}
			return uid;

		}else{
		  var paraString = url.substring(url.indexOf("?")+1,url.length).split("&");  
		  var paraObj = {}  
		  for (i=0; j=paraString[i]; i++){  
		    paraObj[j.substring(0,j.indexOf("=")).toLowerCase()] = j.substring(j.indexOf("=")+1,j.length);  
		  }  
		  var returnValue = paraObj[paras.toLowerCase()];  
		  if(typeof(returnValue)=="undefined"){  
		    return "";  
		  }else{  
		   return returnValue;  
		  }
		}
}