var BottomSearchType = "产品";
function ChangeBottomSearch(obj)
{
    var pa = obj.parentNode;
    var achilds = pa.getElementsByTagName("a");
    for(var i = 0; i < achilds.length; i++)
    {
        achilds[i].id = "";
    }
    obj.id = "sj_dq";
    BottomSearchType = obj.innerHTML;
}

function OnBottomSearch()
{
    if($("txtbottomsearch").value == "请输入关键字")
    {
        alert("请输入关键字");
        return;
    }
    switch(BottomSearchType)
    {
        case "产品":window.open("http://www.518ad.com/sdcsearch.htm?wd=" + escape($("txtbottomsearch").value));break;
        case "求购":window.open("http://www.518ad.com/demandsearch.htm?wd=" + escape($("txtbottomsearch").value));break;
        case "公司":window.open("http://www.518ad.com/corpsearch.htm?k=" + escape($("txtbottomsearch").value));break;
        default:window.open("http://www.518ad.com/sdcsearch.htm?wd=" + escape($("txtbottomsearch").value));break;
    }
}