$(function(){
    $('#btnlogin').bind('click',function(){
        var mgs="";result=true;
        if(isNULL($('#txtName').val())){
            mgs="用户不能为空。\n\r";result=false;
        }
        if(isNULL($("#txtPwd").val())){
            mgs+="密码不能为空。";result=false;
        }
        if(!result){
            alert(mgs);return false;
        }
    });
});
function startMarquee(h, speed, delay, sid) {
    var t = null;
    var p = false;
    var o = GetObj(sid);
    o.innerHTML += o.innerHTML;
    o.onmouseover = function() {p = true}
    o.onmouseout = function() {p = false}
    o.scrollTop = 0;
    function start() {
        t = setInterval(scrolling, speed);
        if(!p) {
		    o.scrollTop += 2;
	    }
    }
    function scrolling() {
        if(p) return;
	    if(o.scrollTop % h != 0) {
            o.scrollTop += 2;
            if(o.scrollTop >= o.scrollHeight/2) o.scrollTop = 0;
        } else {
            clearInterval(t);
            setTimeout(start, delay);
        }
    }
    setTimeout(start, delay);
}startMarquee(226, 60, 0, 'scrollbody');