$(document).ready(function() {
   
   jQuery.each($("#topmenu a"),function(i,val) {
      if (val.id != currentMenu) {

         $("#"+val.id).mouseover(function(){
            $("#"+val.id+" img").attr("src", wwwroot+'/img/menu/'+val.id+'_on.gif');
         });
         $("#"+val.id).mouseout(function(){
            $("#"+val.id+" img").attr("src", wwwroot+'/img/menu/'+val.id+'_off.gif');
         });
      
      }
      else {
         $("#"+val.id+" img").attr("src", wwwroot+'/img/menu/'+val.id+'_on.gif');
      }
   });

   
   if($("#login_un").val() != '') {
      $("#login_un").css("background-image","none");
   }
   if($("#login_pw").val() != '') {
      $("#login_pw").css("background-image","none");
   }
   
    // pngfix
    $(document).pngFix();
});






function calc_left (w) {
   var left = (screen.availWidth / 2) - (w / 2);
   return (left);
}

function calc_top (h) {
   var top = (screen.availHeight / 2) - (h / 2);
   return (top);
}

function popup (url, id, w, h, scrollbars) {

   var top = calc_top (h);
   var left = calc_left (w);
   
   popupwindow = window.open(url, id, 'width='+w+',height='+h+',scrollbars='+scrollbars+',left='+left+',top='+top+',screenX='+left+',screenY='+top);
   
   popupwindow.focus();
}