html5移动端适配；检测浏览器信息函数

以下是一个简单的JavaScript函数，用于检测用户浏览器的信息，并判断是否为移动端。

function detectMobileBrowser() {
    var nua = navigator.userAgent;
    var isMobile = false;
 
    // 测试用户代理字符串中是否有标识移动设备的关键词
    if (/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(nua) 
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