function onClickSearchPerson()
{
   var m=document.searchform;
	var keyValue=document.getElementById("SearchKeyword");
	if(trim(keyValue.value).length==0 || keyValue.value=="请输入关键字……")
	{
	    window.alert("请输入搜索关键字!");
		keyValue.focus();
	    return false;
	}
	else if(trim(keyValue.value).length>30)
	{
		window.alert("对不起，关键字太长!");
		keyValue.focus();
	    return false;
	}
  	document.searchform.action="SearchWeb/SearchJobInfo.aspx";
	document.searchform.target="_blank";
	document.searchform.submit();
}
function trim(s) 
{
	var count = s.length;
	var st    = 0;       // start
	var end   = count-1; // end

	if (s == "") return s;
	while (st < count) 
	{
		if (s.charAt(st) == " ")
			st ++;
		else
			break;
	}
	while (end > st) 
	{
		if (s.charAt(end) == " ")
			end --;
		else
			break;
	}
	return s.substring(st,end + 1);
}
function searchKeyTipOnfocus(obj,value)
{
   if(obj.value==value)
	   obj.value="";
}