[练习] 便捷入口效果，很多商务网站用到兼容 ie ff opera

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i < divs.length; i++) {divs[i].className = null;}for(var i = 0; i < allspan.length; i++) {allspan[i].id = null;}lis[0].className = "none";dl[0].className = "qlogin block";}for(var x = 1; x < 4; x++){show();}function show(){var test = "btype" +x;var btype = document.getElementById("btype" + x);var as = btype.getElementsByTagName("a");var bdivs = btype.getElementsByTagName("div");var spans = btype.getElementsByTagName("span"); for(var i = 0; i < spans.length; i++) { spans[i].num = i; spans[i].onmouseover = type; } function type() { for(var i = 0; i < lis.length; i++) {lis[i].className = null;} for(var i = 0; i < allspan.length; i++) {allspan[i].id = null;} for(var i = 0; i < divs.length; i++) {divs[i].className = null;} dl[0].className = "qlogin"; yhzc.id = null; spans[this.num].id = spans[this.num].className; bdivs[this.num].className = "block"; btype.className = "hoverli"; }}// --></script></div></body></html>
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[练习] 便捷入口效果，很多商务网站用到 兼容 ie ff opera

[练习] 便捷入口效果，很多商务网站用到兼容 ie ff opera
