<!--
//JavaScript by zs

var st1,st2,st3,st4;

//显示下拉层
function showDiv()
{
	ktdq.style.display = "block";
	st1 = window.setTimeout("hideDiv()",3000);
}

//隐藏下拉层
function hideDiv()
{
	ktdq.style.display = "none";
	window.clearTimeout(st1);
}


//显示提示层
function showDiv2()
{
	show_div();
	st2 = window.setTimeout("hideDiv2()",12000);
}

//隐藏提示层
function hideDiv2()
{
	showdown();
	window.clearTimeout(st2);
}

function showup()
{
	if(wrong.filters.Alpha.opacity < 100){
		wrong.filters.Alpha.opacity += 10;
		st3 = setTimeout('showup()',100);
	}
}
function showdown()
{
	if(wrong.filters.Alpha.opacity > 50){
		wrong.filters.Alpha.opacity -= 10;
		st4 = setTimeout('showdown()',100);
	}
	else
	{
		wrong.style.display = "none";
		wrong.filters.Alpha.opacity = 50;
	}
}
function show_div()
{
	window.clearTimeout(st3);
	window.clearTimeout(st4);

	wrong.style.display = "block";
	showup();
}

//顶部的搜索、提问、爱问搜索
function iask_submit(fn,strName)
{
	if(strName == "ask")
	{
		//if(fn.key.value == "" || fn.key.value == "请输入查询词")
		{
//			fn.key.value = "请输入问题标题";
//			fn.key.focus();
		//	window.location.href="http://iask.sina.com.cn/question/ask_new_2.php";
//			return false;
		}
		fn.action = "http://iask.sina.com.cn/question/ask_new_2.php";
		fn.title.value = fn.key.value;
		fn.key.value = '';
		fn.submit();
		return false;
	}
	else if(strName == "know")
	{
		if(fn.key.value == "" || fn.key.value == "请输入查询词" || fn.key.value == "请输入问题标题")
		{
			fn.key.value = "请输入查询词";
			fn.key.focus();
			return false;
		}
		fn.action = "http://iask.sina.com.cn/search_engine/search_knowledge_engine.php";
		fn.submit();
		return false;
	}
	else
	{
		return false;
	}
}

function ckwords(obj)
{
	if(obj.value == "请输入查询词" || obj.value == "请输入问题标题")
	{
		obj.value = "";
		obj.focus();
		return false;
	}
}