/*
 * 福鼎市雅索软件开发科技有限公司
 * Author：  赖起疆
 * Unit Description:
 * 	    自动收缩旗帜
 * ==============================
 * History:
 * Date             Editor          Main Description
 * ==============================
 * 2008/12/26  Lai      	        程序设计
 * ==============================
*/
var checkBanner = false;
var bannerHeight = 165;
var bannerSpeed = 10;

function bannerOpen() {
    if(!checkBanner) {
        $("mBannerDiv").style.display = "block";
        var anim = function() {
            n += 5;
            if(n >= bannerHeight) {
                $("mBanner").style.marginTop = "0px";
                window.clearInterval(ta);
            } else {
                $("mBanner").style.marginTop = "-" + (bannerHeight - n) + "px";
                $("mBannerDiv").style.height = n + "px";
            }
        }, n = 0;
        var ta = window.setInterval(anim, bannerSpeed);
    }
}

function bannerClose() {
    var anim = function() {
        n += 5;
        if(n >= bannerHeight) {
            $("mBanner").style.marginTop = "-" + bannerHeight + "px";
            $("mBannerDiv").style.display = "none";
            window.clearInterval(ta);
        } else {
            $("mBanner").style.marginTop = "-" + n + "px";
            $("mBannerDiv").style.height = (bannerHeight - n) + "px";
        }
    }, n = 0;
    var ta = window.setInterval(anim, bannerSpeed);
}

//测试
window.onload = function() {
    window.setTimeout('bannerOpen()', 1000);
    window.setTimeout('bannerClose()', 10000);
}