function searchfocus() {
    if ($("#wd").val() == "请输入省/市/区名称") {
        $("#wd").val("");
    }

}
function searchblur() {
    if ($("#wd").val() == "") {
        $("#wd").val("请输入省/市/区名称");
    }
}
function searchit() {
    if ($("#wd").val() == "请输入省/市/区名称") {
        alert("请输入省/市/区名称");
        return;
    }
    if ($("#wd").val() == "") {
        $("#wd").val() = "请输入省/市/区名称";
        alert("请输入省/市/区名称");
        return;
    }
    $("#formsearch").submit();
}
function shows() {
    document.write('<table align="center" cellpadding="0" cellspacing="0">');
    document.write('<tr bgcolor="white">');
    document.write('<td>');
    document.write('<form id="formsearch" name="formsearch" action="/s.aspx" style="margin:0px;padding:0px;"><input type="text" id="wd" name="wd" style="width:506px;height:24px;line-height:24px;border:1px solid #c5d5c5;margin:0px;padding-left:10px;" onfocus="javascript:searchfocus()" onblur="javascript:searchblur()"  value="请输入省/市/区名称" /><input type="button" style="height:28px;line-height:28px;width:60px;border:1px solid #c5d5c5;background-color:#bf0000;color:#ffffff;cursor:hand;" value="搜索" onclick="javascript:searchit()" /></form>');
    document.write('</td>');
    document.write('</tr>');
    document.write('</table><br />');
}