// JavaScript Document
function show_pop(){//鏄剧ず绐楀彛 
    document.getElementById("winpop").style.display="block"; 
    timer=setInterval("changeH(4)",2);//璋冪敤changeH(4),姣�0.002绉掑悜涓婄Щ鍔ㄤ竴娆� 
} 
function hid_pop(){//闅愯棌绐楀彛 
    timer=setInterval("changeH(-4)",2);//璋冪敤changeH(-4),姣�0.002绉掑悜涓嬬Щ鍔ㄤ竴娆� 
} 
function changeH(addH) { 
    var MsgPop=document.getElementById("winpop"); 
    var popH=parseInt(MsgPop.style.height||MsgPop.currentStyle.height);//鐢╬arseInt灏嗗璞＄殑楂樺害杞寲涓烘暟瀛�,浠ユ柟渚夸笅闈㈡瘮杈冿紙JS璇�<style>涓殑height瑕佺敤"currentStyle.height"锛� 
    if (popH<=100&&addH>0||popH>=4&&addH<0){//濡傛灉楂樺害灏忎簬绛変簬100(str>0)鎴栭珮搴﹀ぇ浜庣瓑浜�4(str<0) 
        MsgPop.style.height=(popH+addH).toString()+"px";//楂樺害澧炲姞鎴栧噺灏�4涓薄绱� 
    } 
    else{//鍚﹀垯 
        clearInterval(timer);//鍙栨秷璋冪敤,鎰忔�濆氨鏄鏋滈珮搴﹁秴杩�100璞＄礌浜�,灏变笉鍐嶅闀夸簡锛屾垨楂樺害绛変簬0璞＄礌浜嗭紝灏变笉鍐嶅噺灏戜簡 
        MsgPop.style.display=addH>0?"block":"none"//鍚戜笂绉诲姩鏃剁獥鍙ｆ樉绀�,鍚戜笅绉诲姩鏃剁獥鍙ｉ殣钘忥紙鍥犱负绐楀彛鏈夎竟妗�,鎵�浠ヨ繕鏄彲浠ョ湅瑙�1~2璞＄礌娌＄缉杩涘幓,杩欐椂鍊欏氨鎶奃IV闅愯棌鎺夛級 
    } 
} 
window.onload=function(){//鍔犺浇 
setTimeout("show_pop()",800);//0.8绉掑悗璋冪敤show_pop() 
}