//导航菜单


//项目搜索
function search()
{
	var key=document.searchForm.key.value;
    var sdt=document.searchForm.sdate.value;
	str="";
    if (document.searchForm.stype.value==1||document.searchForm.stype.value==2) {

        if(key==""){
            alert("请输入关键字");
            document.searchForm.key.focus();
            return false;
        }
        else {
            if (document.searchForm.stype.value==1) {
                str+="key="+key;
            }
            if (document.searchForm.stype.value==2) {
                str+="hall="+key;
            }
            location.href="/search.php?"+str;
        }
    } else {
        str+="sdate="+sdt;
        location.href="/search.php?"+str;
    }
    return false;
}
function search2()
{
	var cat_id=document.advsearch.cat_id.value;
	var city_id=document.advsearch.city_id.value;
	var start_date=document.advsearch.start_date.value;
	var end_date=document.advsearch.end_date.value;

	var str="";

	if(city_id==0) str+="city_id=&";
	else str+="city_id="+city_id+"&";

	if(cat_id==0) str+="cat_id=&";
	else str+="cat_id="+cat_id+"&";

	if(start_date=="选取起始日期") str+="start_date=&";
	else str+="start_date="+start_date+"&";

	if(end_date=="选取结束日期") str+="end_date=";
	else str+="end_date="+end_date;


	location.href="/search.php?"+str;
}
function isEmail(strEmail) {
    if (strEmail.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1)
    return true;
    else
    return false;
}
 function check_img(){
	var o_img = document.getElementById('authnunimg');
	o_img.src="/inc/authnum.php" +"?t="+ Math.random();
	document.reg.lauthnum.value="";
}