ns4 = (document.layers)? true:false 
ie4 = (document.all)   ? true:false 

var locationVar = ""; 

function changeLocation () 
 { 
  if (locationVar != "" || locationVar != "#") 
   location = locationVar; 
        } 

function setSelectVar (obj) 
 { 
         locationVar = obj.options[obj.selectedIndex].value; 
        } 
        
function jumpToLocation (obj) 
 { 
  locationVar = obj.options[obj.selectedIndex].value;
  if (locationVar != "" || locationVar != "#") 
   location = locationVar; 
        }