var herolist=new Array();

function geturlbyname(name)
{
    for(var j=0;j<herolist.length;j++){
        if(herolist[j][1]==name)return herolist[j][0]
    }
}

function getheroimg(classname)
{
    $('img.'+classname).each(function(i){
        var name=$(this).attr("alt");
        var url=geturlbyname(name);
        $(this).attr("src",url);
    });
}