美图秀秀超能力的javascript,求解，图片从哪里调出来，http://8.app.meitu.com

</div>
<script language="javascript">
    var xmlHttp;
    function S_xmlhttprequest() {
        if(window.ActiveXObject) {
            xmlHttp = new ActiveXObject('Microsoft.XMLHTTP');
        } else if(window.XMLHttpRequest) {
            xmlHttp = new XMLHttpRequest();
        }
    }
    function $(obj){return document.getElementById(obj)}
    var urlinfo=window.location.href;  //获取当前页面的url
    var len=urlinfo.length;//获取url的长度
    var offset=urlinfo.indexOf("##");//设置参数字符串开始的位置
    var newsidinfo;
    if(offset>0){
        newsidinfo=urlinfo.substr(offset+2,len)//取出参数字符串 这里会获得类似“id=1”这样的字符串
        var offset1=newsidinfo.indexOf("&*");//设置参数字符串开始的位置
        var sucai=newsidinfo.substr(0,offset1);
        var offset2=newsidinfo.indexOf("&&");//设置参数字符串开始的位置
        var url=newsidinfo.substr(offset2+2,len)//取出参数字符串 这里会获得类似“id=1”这样的字符串
        var testname=newsidinfo.substr(offset1+2,offset2-offset1-2);
        $('avata').src=url;
        $('weibo').href='weibo.php?source=sina&sucai='+sucai+'&testname='+testname+'&url='+url;
        $('qqweibo').href='qqweibo.php?source=sina&sucai='+sucai+'&testname='+testname+'&url='+url;
    }
    function change(){
        S_xmlhttprequest();
        username=$('userName').value;
        if(username.length==0||username=='请输入你的名字'||username.replace(/[ ]/g,"")==''){
            alert('请输入您的名字');
            return false;
        }
        var reg = /^[\u4e00-\u9fa5]+$/;
        if(reg.test(username))
        {
            if(username.length>8){
                alert('请输入的小于8个字的中文名字');
                return false;
                }
        }
        username=username.replace(/\'/ig,"‘");
        xmlHttp.onreadystatechange = function(){if(xmlHttp.readyState == 4 ){
        if(xmlHttp.status == 200) {   
            var data =  xmlHttp.responseText;
            //var obj = eval( "(" + data + ")" );
            var obj = new Function("return" + data)();//转换后的JSON对象
            var    result=obj.result;
            if(result=="false"){
                alert("该名字不在河蟹范围内，无法生成");
                return false;
            }
            else if(result=="false1"){
                alert("输入的名字太长");
                return false;
            }
            else{
                var returnpay=obj.url;
                var sucai=obj.sucaiid;
                $('avata').src=returnpay;
                $('weibo').href='weibo.php?source=sina&sucai='+sucai+'&testname='+encodeURI(username)+'&url='+returnpay;
                $('qqweibo').href='qqweibo.php?source=sina&sucai='+sucai+'&testname='+encodeURI(username)+'&url='+returnpay;
                return false;
            }
        }
        }
    };
        xmlHttp.open("post","mkimg.php",true)
        var sendDate ="username="+username;
        xmlHttp.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
        xmlHttp.send(sendDate);
        return true;
    }
function CopyImage(img)
{
  if (img.tagName != 'IMG') return;
  if (typeof img.contentEditable == 'undefined' || !document.body.createControlRange){
    alert('抱歉您的浏览器不支持直接复制图片，请在图片上点击右键“复制”');
  }
  else{
    var ctrl = document.body.createControlRange();
    img.contentEditable = true;
    ctrl.addElement(img);
    ctrl.execCommand('Copy');
    img.contentEditable = false;
     alert('图片复制成功\n\n直接在QQ聊天窗口粘贴（Ctrl+V）即可');
  }
}
</script>
<div style="display:none"><script src="http:// language="JavaScript"></script></div>