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MPBrowser簡易圖片浏覽器 v1.0
編輯:AJAX詳解     

MPBrowser.JS
[復制此代碼]CODE:
var thisImgNo = 290;
function AJaxConn(){
    var XMLhttp = false;
    try{xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");}
    catch(e){try{xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");}
    catch(e){try{xmlhttp = new XMLHttpRequest();}
    catch(e){alert(e);XMLhttp = false;}}}
    if(!XMLhttp)return null;
    this.connect = function(Url,Method,postContent){
        if(!XMLhttp)return false;
        Method = Method.toUpperCase();
        try{
            if (Method == "GET"){
                XMLhttp.open(Method,Url + '?' + postContent,true);
                XMLhttp.setRequestHeader("Content-Type","text/Html;charset=GB2312");
                sVars = null;
            }else{
                XMLhttp.open(Method,Url,true);
                XMLhttp.setRequestHeader("Method","POST "+Url+" HTTP/1.1");
                XMLhttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
            }
            XMLhttp.onreadystatechange = function(){
                if(XMLhttp.readyState == 4){
                    if(XMLhttp.status == 200){
                        imgInfo = XMLhttp.ResponseText;
                        var imgInfoArr = imgInfo.split("|");
                        var tmpimg = new Image();
                        tmpimg.src = imgInfoArr[0];
                        thisImgNo = imgInfoArr[1];
                        var element = document.getElementById("img");
                        if(!element.xpos)element.xpos = 0;
                        element.style.width = (element.clIEntWidth + 130) + "px";
                        slideElement("img",element.xpos-130,0,10);
                        element.innerHtml += '<a href="http://blog.mzoe.com/" target="_blank"><img height="90" width="120" alt="" src="'+imgInfoArr[0]+'" /></a>';
                    }
                }
            }
            XMLhttp.send(postContent);
        }catch(z){return false;}
        return true;
    }
    return this;
}
function loadImg(type){
    var element = document.getElementById("img");
    if(!element.xpos)element.xpos = 0;
    if(type=="pre"){
        if(element.xpos==0)return false;
        slideElement("img",element.xpos+130,0,10);
    }else{
        if(element.xpos==-(element.clIEntWidth - 260)){
            var myConn = new AJaxConn();
            if(!myConn)return false;
            myConn.connect("Cmd.ASP","get","d="+thisImgNo);
        }else{
            slideElement("img",element.xpos-130,0,10);
        }
    }
}
function slideElement(elementId,x,y,inc){
    var element = document.getElementById(elementId);
    if(element.sliding)clearTimeout(element.sliding);
    if(!element.xpos)element.xpos = 0;
    if(!element.ypos)element.ypos = 0;
    if(element.xpos == x && element.ypos == y) return true;
    if(element.xpos > x){
        var dist = Math.ceil((element.xpos-x)/inc);
        element.xpos = element.xpos - dist;
    }
    if(element.xpos < x) {
        var dist = Math.ceil((x-element.xpos)/inc);
        element.xpos = element.xpos + dist;
    }
    if(element.ypos > y) {
        var dist = Math.ceil((element.ypos-y)/inc);
        element.ypos = element.ypos - dist;
    }
    if(element.ypos < y) {
        var dist = Math.ceil((y-element.ypos)/inc);
        element.ypos = element.ypos + dist;
    }
    element.style.left = element.xpos+'px';
    element.style.top = element.ypos+'px';
    element.sliding = setTimeout('slideElement("'+elementId+'",'+x+','+y+','+inc+')',10);
}

MPBrowser主要的特點是無刷新,簡單易用,代碼也相當的簡單,只有幾kb的JS代碼,可以與任何的後台輕易整合,最後不臭美的說還有點好看(當然換個樣式也相當的方便)。

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