function drop_mouseover(pos){
 try{window.clearTimeout(timer);}catch(e){}
}
function drop_mouseout(pos){
 var posSel=document.getElementById(pos+"Sel").style.display;
 if(posSel=="block"){
  timer = setTimeout("drop_hide('"+pos+"')", 1000);
 }
}
function drop_hide(pos){
 document.getElementById(pos+"Sel").style.display="none";
}
function search_show(pos,searchType,href){
    document.getElementById(pos+"SearchType").value=searchType;
    document.getElementById(pos+"Sel").style.display="none";
    document.getElementById(pos+"Slected").innerHTML=href.innerHTML;
    var sE = document.getElementById("searchExtend");
    if(sE != undefined  &&  searchType == "bar"){
     sE.style.display="block";
    }else if(sE != undefined){
     sE.style.display="none";
    }
 try{window.clearTimeout(timer);}catch(e){}
 return false;
}

function getFocus(obj)
{
	if(obj.value==obj.defaultValue)
		obj.value='';
}

function lostFocus(obj)
{
	if(obj.value=='')
		obj.value=obj.defaultValue;
}

function chksearchKeyword(obj)
{
	if(obj.keyword.value==''||obj.keyword.value==obj.keyword.defaultValue)
	{
		alert('请输入搜索关键字!');
		obj.keyword.focus();
		return false;
	}
	return true;		
}