js判断浏览器， 并调整select宽度 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Untitled Page</title>
    <mce:script src="jquery-1.4.4.js" mce_src="jquery-1.4.4.js" type="text/javascript"></mce:script>
    <mce:script type="text/javascript"><!--
        function userBrowser() {
            var browserName = navigator.userAgent.toLowerCase();
            if (/msie/i.test(browserName) && !/opera/.test(browserName)) {
                browserName="ie";
            } else if (/firefox/i.test(browserName)) {
                browserName = "firefox";
            } else if (/chrome/i.test(browserName) && /webkit/i.test(browserName) && /mozilla/i.test(browserName)) {
                browserName = "chrome";
            } else if (/opera/i.test(browserName)) {
                browserName = "opera";
            } else if (/webkit/i.test(browserName) && !(/chrome/i.test(browserName) && /webkit/i.test(browserName) && /mozilla/i.test(browserName))) {
                browserName = "safari";
            } else {
                browserName = "unknow";
            }
            return browserName;
        }
        $(function() {
            var browser = userBrowser();
            if (browser == "ie") {
                $("select").each(function() {
                    $(this).css("width", ($(this).width() + 10) + "px");
                });
            }
            else if (browser == "firefox") {
                $("select").each(function() {
                    $(this).css("width", ($(this).width() + 8) + "px");
                });
            }
            else if (browser == "chrome") {
                $("select").each(function() {
                    $(this).css("width", ($(this).width() + 6) + "px");
                });
            }
            else if (browser == "safari") {
                $("select").each(function() {
                    $(this).css("width", ($(this).width() + 30) + "px");
                });
            }
        });
    
// --></mce:script>
</head>
<body>
    <div>
        <!-- 注: select 在doctype下, 会出现width比同width的text短, ie为6px, ff为4px -->
        <input id="t1" type="text" style="width: 400px;" /><br />
        <select id="s1" style="width: 400px;">
            <option>1</option>
        </select><br />
        <textarea id="TextArea1" cols="20" rows="2" style="width: 400px;">

 

posted @ 2014-11-14 09:37  阳光小屋  阅读(876)  评论(0)  编辑  收藏  举报