String.prototype.LTrim = function(){return LTrim(this);} 
function LTrim(str) 
{ 
  var i; 
  for(i=0;i<str.length;i++) 
  { 
    if(str.charAt(i)!=" "&&str.charAt(i)!=" ")break; 
  } 
  str=str.substring(i,str.length); 
  return str; 
}

function check()
{
  var s_key = document.getElementById("searchbox1").value;
  s_key = s_key.LTrim();
  if (s_key == "搜索超过70万个站点信息" || s_key ==""){
	  alert("请输入搜索关键字!") ;
	  document.getElementById("searchbox1").value = "" ;
	  document.getElementById("searchbox1").focus();
	  return false;
  }
  return true;
}

function fAddFavorite(a,b){
	if(document.all){
		window.external.AddFavorite(b,a)
	}else{
		window.sidebar.addPanel(a,b,"")
	}
}