function show_searchbox(site)
{
var name=prompt("Please enter your key","www.kingofpersia.ir");
if (name!=null && name!="")
  {
window.open('http://www.google.com/search?q='+name+'&btnG=Search&sitesearch='+site+'%2F&ie=UTF-8&oe=UTF-8','newtaborsomething');
  }
}