标签:html restore option bsp tag dex 添加 属性 javascrip
HTML的Select控件,C#的DropDownList服务器控件
设置父类型Display属性之后,在IE6/7上无效
直接将下段javascript脚本添加到页面中即可
<script type="text/javascript"> window.onload = function () { if (document.getElementsByTagName) { var s = document.getElementsByTagName("select"); if (s.length > 0) { window.select_current = new Array(); for (var i = 0, select; select = s[i]; i++) { select.onfocus = function () { window.select_current[this.id] = this.selectedIndex; } select.onchange = function () { restore(this); } emulate(select); } } } } function restore(e) { if (e.options[e.selectedIndex].disabled) { e.selectedIndex = window.select_current[e.id]; } } function emulate(e) { for (var i = 0, option; option = e.options[i]; i++) { if (option.disabled) { option.style.color = "graytext"; } else { option.style.color = "menutext"; } } } </script>
标签:html restore option bsp tag dex 添加 属性 javascrip
原文地址:http://www.cnblogs.com/minily/p/7390913.html