/*--------------------------------------------------------------------------*
 *
 *  alphafilter JavaScript Library beta13
 *
 *  MIT-style license.
 *  http://blog.webcreativepark.net/2007/02/01-233315.html
 *
 *  2007-2009 Kazuma Nishihata
 *  http://www.to-r.net
 *
 *--------------------------------------------------------------------------*/
new function(){
    try{
        if (navigator.userAgent.indexOf("MSIE")!= -1 && navigator.appVersion.indexOf("6.0")!= -1) {//for old ie
            var elements = getElementsByClassName("alphafilter");
            for (var i=0; i<elements.length; i++) {
                var element = elements[i];
                if(element.nodeName=="IMG"){
                    var newimg           = document.createElement("b");
                    for(var key in element.currentStyle){
                        newimg.style[key]=element.currentStyle[key];
                    }
                    newimg.className     = element.className;
                    newimg.style.display = "inline-block";
                    newimg.style.zoom = "1";
                    newimg.style.width   = element.width;
                    newimg.style.height  = element.height;
                    newimg.style.styleFloat   = element.align;
                    newimg.style.filter  = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src="+element.src+",sizingMethod='scale')";
                    newimg.originalSrc = element.src;
                    if (element.parentNode.tagName == "A") {
                        element.parentNode.style.cursor = "pointer";
                        element.parentNode.style.position="relative";
                        newimg.style.cursor = "pointer";
                    }
                    newimg.images = new Image();
                    newimg.images.src = element.src;
                    element.className.split(/\s+/);

                    element.parentNode.insertBefore(newimg,element)
                    element.style.display="none";
                }else{
                    var anchors = element.getElementsByTagName("a");
                    for (var j=0; j<anchors.length; j++) {
                        var anchor = anchors[j];
                        anchor.style.position="relative";
                        anchor.style.cursor="pointer";
                    }
                    var iputs = element.getElementsByTagName("input");
                    for (var j=0; j<iputs.length; j++) {
                        var iput = iputs[j];
                        iput.style.position="relative";
                    }
                    var iputs = element.getElementsByTagName("textarea");
                    for (var j=0; j<iputs.length; j++) {
                        var iput = iputs[j];
                        iput.style.position="relative";
                    }
                    var iputs = element.getElementsByTagName("select");
                    for (var j=0; j<iputs.length; j++) {
                        var iput = iputs[j];
                        iput.style.position="relative";
                    }
                    var  newimg = element.currentStyle.backgroundImage || element.style.backgroundImage;
                    newimg.match(/^url[("']+(.*\.png)[)"']+$/i)
                    var newimg = RegExp.$1;
                    element.style.filter ="progid:DXImageTransform.Microsoft.AlphaImageLoader(src="+newimg+",sizingMethod='scale')";
                    element.style.background = "none";
                }
            }
        }
    }catch(e){}
    function imageReplace(){
        var btnClassName = "btn";
        var objAll = document.getElementsByTagName ? document.getElementsByTagName("*") : document.all;
        for (var i = 0; i < objAll.length; i++) {
            var btn=false;
            var eltClass = objAll[i].className.split(/\s+/);
            for (var j = 0; j < eltClass.length; j++) {
                if (eltClass[j] == btnClassName)btn = true;
            }
            if(btn == true){
                if(objAll[i].originalSrc){
                    objAll[i].rolloverSrc = objAll[i].originalSrc.replace(/(\.gif|\.jpg|\.png)$/,"_on$1");
                    objAll[i].onmouseover = function(){
                        this.style.filter ="progid:DXImageTransform.Microsoft.AlphaImageLoader(src="+this.rolloverSrc+",sizingMethod='scale')";
                    }
                    objAll[i].onmouseout = function(){
                        this.style.filter ="progid:DXImageTransform.Microsoft.AlphaImageLoader(src="+this.originalSrc+",sizingMethod='scale')";
                    }
                }else{
                    if(objAll[i].nodeName=="IMG"){
                        objAll[i].originalSrc = objAll[i].src
                        objAll[i].rolloverSrc = objAll[i].src.replace(/(\.gif|\.jpg|\.png)$/,"_on$1")
                        objAll[i].onmouseover = function(){
                            this.src = this.rolloverSrc;
                        }
                        objAll[i].onmouseout = function(){
                            this.src = this.originalSrc;
                        }
                    }
                }
            }
        }
    }
    function getElementsByClassName(className){
        var i, j, eltClass;
        var objAll = document.getElementsByTagName ? document.getElementsByTagName("*") : document.all;
        var objCN = new Array();
        for (i = 0; i < objAll.length; i++) {
            eltClass = objAll[i].className.split(/\s+/);
            for (j = 0; j < eltClass.length; j++) {
                if (eltClass[j] == className) {
                    objCN.push(objAll[i]);
                    break;
                }
            }
        }
        return objCN;
    }
    function addEvent(elm,listener,fn){
        try{
            elm.addEventListener(listener,fn,false);
        }catch(e){
            elm.attachEvent("on"+listener,fn);
        }
    }
    addEvent(window,"load",imageReplace)
}