function ShowButton(objName, ImageName) {
	objName.src=ImageName
}

function PreloadImages() {
  if(document.images)
    { if (!document.tmpImages)
         document.tmpImages=new Array();
      with(document) {
       var
          i,j=tmpImages.length,
          a=PreloadImages.arguments;

       for(i=0; i<a.length; i++)
          if (a[i].indexOf("#")!=0) {
             tmpImages[j]=new Image;
             tmpImages[j++].src=a[i];
          }
      }
    }
}