function searchit(){

   strquery=self.document.searchfm.keyinput.value;
   //alert(strquery);
   strquery.replace(" ","+");

   if (self.document.searchfm.siteselect.selectedIndex==0) {
    self.window.open("http://www.baidu.com/s?wd="+strquery,"",""); 
  }
   if (self.document.searchfm.siteselect.value==2) {
	//1.yahoo
    self.window.open("http://iask.com/s?k="+strquery,"","");    
  }
http://iask.com/s?k

  
  if (self.document.searchfm.siteselect.value==1) {
	//10.Google
       self.window.open("http://www.google.com/search?q=" + strquery +"&hl=zh-CN&lr=","","");
  }
  }