function gogetem() {
   var url,index,param,href;
   
   url = "http://almeco.seesite.be/";
   index = document.catselectform.catselect.selectedIndex;
   param = document.catselectform.catselect.options[index].value;
   href = self.location.search
   
   if (href == "") {
      //self.location.search="?tx_ttnews[cat]="+param
	  self.location=url+param;
      //alert(href);
   } else {
      href=href.replace(/\?tx_ttnews\[cat\]\=\d+/,'?tx_ttnews[cat]='+param);
      href=href.replace(/&tx_ttnews\[cat\]\=\d+/,'&tx_ttnews[cat]='+param);
	  //href = url+param;
      self.location.search=href
   }
}