function mouseOver(image)
{ 
   var src   = image.src;
   if (src.indexOf("-on.") != -1) 
   {
      image.src = src.replace(/-on\./i, "-off.");
   }
   else
   {
      image.src = src.replace(/-off\./i, "-on.");
   }

}

function mouseOut(image)
{
	
   var src   = image.src;
    if (src.indexOf("-on.") != -1) 
   {   
      image.src = src.replace(/-on\./i, "-off.");
   }
   else
   {
      image.src = src.replace(/-off\./i, "-on.");
   }

} 

function popup(url) {
	open(url,'','left=20,top=20,width=650,height=520,scrollbars=yes');
	
}