var xPos = 20;
	var yPos = document.body.clientHeight;
	var step = 1;
	var delay = 30;
	var height = 0;
	var Hoffset = 0;
	var Woffset = 0;
	var yon = 0;
	var xon = 0;
	var pause = true;
	var interval;
	imgxfck.style.top = yPos;
	function changePos() {
		width = document.body.clientWidth;
		height = document.body.clientHeight;
		Hoffset = imgxfck.offsetHeight;
		Woffset = imgxfck.offsetWidth;
		$("#imgxfck").css("left",xPos + document.body.scrollLeft);
//		$("#imgxfck").css("top",yPos + document.body.scrollTop);
		
//		$("#imgxfck").css("left",xPos +document.documentElement.scrollLeft);
		$("#imgxfck").css("top",yPos + document.documentElement.scrollTop);
		 
		console.log(document.documentElement.scrollTop);
		 
		if (yon) {
		yPos = yPos + step;
		}
		else {
		yPos = yPos - step;
		}
		if (yPos < 0) {
		yon = 1;
		yPos = 0;
		}
		if (yPos >= (height - Hoffset)) {
		yon = 0;
		yPos = (height - Hoffset);
		}
		if (xon) {
		xPos = xPos + step;
		}
		else {
		xPos = xPos - step;
		}
		if (xPos < 0) {
		xon = 1;
		xPos = 0;
		}
		if (xPos >= (width - Woffset)) {
		xon = 0;
		xPos = (width - Woffset);
		}
	}
	function start() {
		imgxfck.style.visibility = "visible";
	    interval = setInterval('changePos()', delay);
	}
//	start(); 
	
	function cloceImgXfck() {
		imgxfck.style.visibility = 'hidden'
	}
	
	
	
	//鏀惰棌
	function addFavorite() {
        var url = window.location;
        var title = document.title;
        var ua = navigator.userAgent.toLowerCase();
        if (ua.indexOf("msie 8") > -1) {
            external.AddToFavoritesBar(url, title, '');//IE8
        } else {
            try {
                window.external.addFavorite(url, title);
            } catch (e) {
                try {
                    window.sidebar.addPanel(title, url, "");//firefox
                } catch (e) {
                    alert("鍔犲叆鏀惰棌澶辫触锛岃浣跨敤Ctrl+D杩涜娣诲姞");
                }
            }
        }
    } 


     //璁句负棣栭〉 <a onclick="setHome(this,window.location)">璁句负棣栭〉</a>
    function setHome(obj,vrl){
        try{
            obj.style.behavior='url(#default#homepage)';obj.setHomePage(vrl);
        }
        catch(e){
            if(window.netscape) {
                try {
                    netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
                }
                catch (e) {
                    alert("姝ゆ搷浣滆娴忚鍣ㄦ嫆缁濓紒\n璇峰湪娴忚鍣ㄥ湴鍧€鏍忚緭鍏モ€渁bout:config鈥濆苟鍥炶溅\n鐒跺悗灏 [signed.applets.codebase_principal_support]鐨勫€艰缃负'true',鍙屽嚮鍗冲彲銆?);
                }
                var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch);
                prefs.setCharPref('browser.startup.homepage',vrl);
            }
        }
    }
    
    //杩斿洖椤堕儴
    window.onload = function(){
    	    var btnTop = document.getElementById("btnTop");
    	    var timer = null;
    	    window.onscroll = function(){
    	        var backTop = getScrollTop();
    	        if(backTop >= 400){ //褰撳墠瑙嗗彛椤剁澶т簬绛変簬20鏃讹紝鏄剧ず杩斿洖椤堕儴鐨勬寜閽
    	            btnTop.style.display = "block";
    	        }else {
    	            btnTop.style.display = "none";
    	        }
    	    };

    	    btnTop.onclick = function(){
    	        //瀹氭椂鎵ц
    	        timer = setInterval(function(){
    	            var backTop = getScrollTop();
    	            var speedTop = backTop / 10;
    	            //淇敼褰撳墠瑙嗗彛鐨勬暟鍊硷紝浜х敓鍚戜笂娲诲姩鐨勬晥鏋
    	            setScrollTop(backTop - speedTop);
    	            if(backTop == 0){
    	                //缁撴潫鍑芥暟鎵ц
    	                clearInterval(timer);
    	            }
    	        },30);
    	    };
    	    //鑾峰彇褰撳墠瑙嗗彛鐨勯《绔暟鍊
    	    var getScrollTop = function(){
    	        var sTop ;
    	        if (document.compatMode == "BackCompat")
    	        {
    	            sTop = document.body.scrollTop;
    	        }
    	        else
    	        {
    	            //document.compatMode == \"CSS1Compat\"
    	            sTop = document.documentElement.scrollTop == 0 ? document.body.scrollTop : document.documentElement.scrollTop;
    	        }
    	        return sTop;
    	    };
    	    //璁剧疆褰撳墠瑙嗗彛鐨勯《绔暟鍊
    	    var setScrollTop = function(top){

    	        if (document.compatMode == "BackCompat")
    	        {
    	            document.body.scrollTop = top;
    	        }
    	        else
    	        {
    	            if(document.documentElement.scrollTop == 0){
    	                document.body.scrollTop = top;
    	            }else{
    	                document.documentElement.scrollTop = top;
    	            }
    	        }
    	}
    };