var ajax=new AJAXRequest();
function $(id) {
	return document.getElementById(id);
}
   

function showClist(x){
document.getElementById("show").innerHTML="<img src=center/js/loading.gif />";
var params="fid="+x;
ajax.get(
"center/ajaxFile/clist.php?"+params,
function(obj) {$('show').innerHTML=obj.responseText});	 
}


<!-- end -->

function add(str){
             var strHtml = str;
			 //设置显示的宽度
             var pop=new Popup({ contentType:5,isReloadOnClose:false,width:600,height:60});
             pop.setContent("contentHtml",strHtml);
             pop.setContent("title","welcome to http://www.zhongjiewang.cn ");
             pop.setContent("callBack",callbackfunc);
             pop.setContent("parameter",{obj:pop});
             pop.build();
             pop.show();
         }

function callbackfunc(){
		var element = $("dialogBody");
		if(checkadd()){
		ajax.postf(
              "p",
               function(obj) {element.innerHTML = '<div style="margin:0 auto;"><img src="image/ok.gif" style="margin-top:20px;margin-left:50px;"> '+obj.responseText+'</div>';},
              "do.php",
              "POST" );
		}
}