function searchit(){

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

   if (self.document.searchfm.siteselect.selectedIndex==0) {
    alert("请选择搜索引擎!");
  }
   if (self.document.searchfm.siteselect.value==1) {
	//1.yahoo
    self.window.open("http://search.chinese.yahoo.com/search/gb?p="+strquery,"","");    
  }

  if (self.document.searchfm.siteselect.value==2) {
	//2.搜狐
   //self.document.location="http://site.search.sohu.com/final.jsp?key_word=" + strquery +  "& page_index=0";
   self.window.open("http://site.search.sohu.com/final.jsp?key_word=" + strquery +  "& page_index=0","","");

   }
  if (self.document.searchfm.siteselect.value==3) {
	//3.新浪
   //self.document.location="http://search.sina.com.cn/cgi-bin/search/search.cgi?_searchkey=" + strquery + "&_andor=and&_ss=sina";
   self.window.open("http://search.sina.com.cn/cgi-bin/search/search.cgi?_searchkey=" + strquery + "&_andor=and&_ss=sina","","");

   }
  if (self.document.searchfm.siteselect.value==4) {
	//4.21CN
   //self.document.location="http://search.21cn.com/result.php?lm=0&sr=2&si=gi&cl=3&ct=0&word=" + strquery + "&tn=21cndir";
   self.window.open("http://search.21cn.com/result.php?lm=0&sr=2&si=gi&cl=3&ct=0&word=" + strquery + "&tn=21cndir","","");
   }   
  if (self.document.searchfm.siteselect.value==5) {
	//5.网易Yeah
   //self.document.location="http://www.yeah.net/cgi-bin/search/engine/search.fcgi?key=" + strquery;
   self.window.open("http://www.yeah.net/cgi-bin/search/engine/search.fcgi?key=" + strquery,"","");
   }
  if (self.document.searchfm.siteselect.value==6) {
	//6.263在线
   //self.document.location="http://search1.263.net/search-bin/263S.cgi?word=" + strquery;
   self.window.open("http://search1.263.net/search-bin/263S.cgi?word=" + strquery,"","");
   }
  if (self.document.searchfm.siteselect.value==7) {
	//7.Yahoo
   //self.document.location="http://search.yahoo.com/bin/search?p="+strquery;
   self.window.open("http://search.yahoo.com/bin/search?p="+strquery,"","");
   }

  if (self.document.searchfm.siteselect.value==8) {
	//8.Infoseek
    //self.document.location="http://www.goto.com/d/search/p/go/?Partner=go_home&Keywords=" + strquery;
    self.window.open("http://www.goto.com/d/search/p/go/?Partner=go_home&Keywords=" + strquery,"","");
   }

  if (self.document.searchfm.siteselect.value==9) {
	//9.Lycos
    //self.document.location="http://cn.lycosasia.com/srch/index.html?query=" + strquery +"&cat=cnscdir";
    self.window.open("http://cn.lycosasia.com/srch/index.html?query=" + strquery +"&cat=cnscdir","","");
  }
  
  if (self.document.searchfm.siteselect.value==10) {
	//10.Google
       self.window.open("http://www.google.com/search?q=" + strquery +"&hl=zh-CN&lr=","","");
  }
  }