function main(){
    var aoImgs = document.getElementById("links").getElementsByTagName("img");
    for(var i = 0; i < aoImgs.length; ++i){
        var oImg = aoImgs[i];
        var sSrc = oImg.src.toString();
        var asSrcH = sSrc.split("_");
        asSrcH[2] = new Array(asSrcH[2],"H").join("");
        sSrcH = asSrcH.join("_");
        oImg.onmouseover=function(){
            var sSrc = this.src.toString();
            var asSrcH = sSrc.split("_");
            asSrcH[2] = new Array(asSrcH[2],"H").join("");
            sSrcH = asSrcH.join("_");
            this.src = sSrcH;
            return;
        }
        oImg.onmouseout=function(){
            var sSrc = this.src.toString();
            var asSrcH = sSrc.split("_");
            asSrcH[2] = asSrcH[2].substring(0,asSrcH[2].length-1);
            sSrc = asSrcH.join("_");
            this.src = sSrc;
            return;
        }
    }
    return;
}
setTimeout("main()",0);