javascript实现跳转菜单(2)

</body>
</html>

Javascript脚本[javascript]
window.onload=initForm; 
 
//防止页面缓存，无法触发onload  
window.onunload=function(){} 
     
    function initForm(){ 
        document.getElementById("newLocation").selectIndex=0; 
        document.getElementById("newLocation").onchange=jumpPage; 
         
        } 
         
         
    function jumpPage(){ 
        var newLoc=document.getElementById("newLocation"); 
        var newPage=newLoc.options[newLoc.selectedIndex].value; 
     
        if (newPage!=""){ 
            window.location=newPage; 
            } 
         
        } 
window.onload=initForm;

//防止页面缓存，无法触发onload
window.onunload=function(){}
 
 function initForm(){
  document.getElementById("newLocation").selectIndex=0;
  document.getElementById("newLocation").onchange=jumpPage;
  
  }
  
  
 function jumpPage(){
  var newLoc=document.getElementById("newLocation");
  var newPage=newLoc.options[newLoc.selectedIndex].value;
 
  if (newPage!=""){
   window.location=newPage;
   }
  
  }

摘自 贾琳的专栏