function checkmodnickname(form,idname){
	if(form.nickname.value==''){
		idname.innerHTML="请填写昵称!";
		return false;
		}
		else{
		var xmlhttp = getHTTPObject();
			var nickname=form.nickname.value;
			var url="chkemail.php?niname="+encodeURIComponent(nickname);
			xmlhttp.open("GET",url,true);
			xmlhttp.onreadystatechange = function(){
			if(xmlhttp.readyState == 4){
			if(xmlhttp.status == 200){
				if(xmlhttp.responseText==2){
			idname.innerHTML="此昵称已被使用,请重新填写!";
			form.nickname.value='';
			form.nickname.focus();
			return false;
				}else if(xmlhttp.responseText==1){
					idname.innerHTML="此昵称可以使用!";
					}
			}
			}
			}
			xmlhttp.send(null);
			}
	}
	function deluserpic(id){
		var xmlhttp = getHTTPObject();
			//var nickname=form.nickname.value;
			var url="chkemail.php?picid="+id;
			xmlhttp.open("GET",url,true);
			xmlhttp.onreadystatechange = function(){
			if(xmlhttp.readyState == 4){
			if(xmlhttp.status == 200){
				//if(xmlhttp.responseText==2){
			alert(xmlhttp.responseText);
			//reload();
			location.href='my_photo_album.php';
				//}
			}
			}
			}
			xmlhttp.send(null);
			}