function Check(frm)
{
	if(frm.ret.value < 3)
	{
		if(frm.k.value.length < 3)
		{
			alert('资料搜索字符为3个或3个以上！');
			frm.k.focus();
			return false;
		}
		if(frm.ret.value == "0") location.href = "s_" + frm.k.value + ".html";
		if(frm.ret.value == "1") location.href = "i_" + frm.k.value + ".html";
		if(frm.ret.value == "2") location.href = "d_" + frm.k.value + ".html";
	}
	else
	{
		if(frm.k.value.length < 4)
		{
			alert('货源搜索字符为4个或4个以上！');
			frm.k.focus();
			return false;
		}
		window.open("http://kucun.21ic.com/gongying-ic/" + frm.k.value + ".html");
	}
	return false;
}