//--------------------
// CSS Image Swapper
// by Geoffrey Roberts
//--------------------
//update by YiQi Huang on 23-May-05
//1-July-05 adding the identify of OS 

function swapTo(imgLoc, objName){
  var agt = navigator.userAgent.toLowerCase();
  if((agt.indexOf("win") != -1 || agt.indexOf("16bit") != -1)) {    //   window
    if(navigator.appName == "Mozilla"|| navigator.appName == "Netscape"){ //!IE
      eval('document.' + objName + '.src = "layout/' + imgLoc + '"');
    }
  } else {   // assume all work under linux, because no IE there
    eval('document.' + objName + '.src = "layout/' + imgLoc + '"');	
  }	
}