function divHdWrite(){
    //divStr 是漂浮在网页顶部的一个提示说明页面
    divStr = '<div style="background-image: url(http://www.job36.com/imgs/36crm/bg.jpg);background-repeat: repeat-x;clear: both;height: 48px;overflow: hidden;border-bottom-width: 1px;border-bottom-style: solid;border-bottom-color: #A4C7E6;"><table width="770" border="0" align="center" cellpadding="0" cellspacing="0">' +
    '<tr><td align="left">' +
    '<div style="position: absolute;"><div style="position: relative;left: 760px;top: 5px;">' +
    '<img src="http://www.job36.com/imgs/ico_underDivHdColse2.gif" style="cursor:hand;margin:0px 0px 0px 0px;" onClick="deleteDivHd();" alt="关闭提示">' +
   '</div></div>' +
	'<img src="http://www.job36.com/ad/2009/message/0126.gif" border="0"/>' +
   
    '</td></tr></table></div>';
    var divHd = document.createElement("DIV");
    divHd.id = 'divHd';
    divHd.style.clear = 'both';
    divHd.style.height = '43px';
    divHd.style.margin = '0px auto 1px auto';
    divHd.style.overflow = 'hidden';
    divHd.style.textAlign = 'center';
    //divHd.style.backgroundColor = '#FFFEF4';
    //divHd.style.borderBottomWidth = '1px';
    //divHd.style.borderBottomStyle = 'solid';
    //divHd.style.borderBottomColor = '#9F9F9F';
    divHd.innerHTML = divStr;
    //document.body.appendChild(divHd);
}

function deleteDivHd(){
    var d = document.getElementById('divHd');
    var h = d.offsetHeight;
    function dmove(){
        h -= 2;//设置层收缩的速度webjx.com
        if (h <= 0) {
           d.parentNode.removeChild(d);
            clearInterval(iIntervalId);
        } else {
            d.style.height = h + 'px';
        }
    }
    iIntervalId = setInterval(dmove, 2);
    
}


divHdWrite();