图片放大源码

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<script type="text/javascript" src="js/jquery-1.4.2.min.js"></script>
<script type="text/javascript" src="js/preview.js"></script>
<script type="text/javascript">
$(function(){
    if($(‘a.preview‘).length){
        var img = preloadIm();
        imagePreview(img);
    }
})
</script>

this.preloadIm=function(){
    var b=new Array;
    $("a.preview").each(function(){
        $(this).attr("path");
    });
    return b
};
this.imagePreview=function(d,c){
    offX=5;
    offY=5;
    c=c==undefined?"a.preview":c;
    $(c).hover(function(e){
        $("body").append("<div id=‘preview‘ class=‘previewShowWindow‘><img id=‘pi‘ src=‘images/loadingAnimation.gif‘ alt=‘Now Loading‘ /></div>");
        var m=$(this).attr("path");
        $("#pi").attr("src",m);
        var o=$("#preview").width();
        var p=$("#preview").height();
        var a=$(window).width()+$(window).scrollLeft();
        var l=$(window).height()+$(window).scrollTop();
        var n;
        var b;
        if((e.pageX+offX+o)>a){
            n=e.pageX-(o+offX)+"px"
        }else{
            n=e.pageX+offX+"px"
        }if((e.pageY+offY+p)>l){
            b=l-(p+offY)+"px"
        }else{
            b=e.pageY+offY+"px"
        }
            $("#preview").css("top",b).css("left",n).fadeIn("fast")
        },function(){
            $("#preview").remove()
    });

    $(c).mousemove(function(e){
        var m=$("#preview").width();
        var n=$("#preview").height();
        var a=$(window).width()+$(window).scrollLeft();
        var k=$(window).height()+$(window).scrollTop();
        var l;
        var b;
        if((e.pageX+offX+m)>a){
            l=e.pageX-(m+offX)+"px"
        }else{
            l=e.pageX+offX+"px"
        }if((e.pageY+offY+n)>k){
            b=k-(n+offY)+"px"
        }else{
            b=e.pageY+offY+"px"
        }
        $("#preview").css("top",b).css("left",l)
    })
    
};