//// JavaScript Document
//var mengvalue = -1;
//
//var phoneWidth = parseInt(window.screen.width);
//var phoneScale = phoneWidth / 640;
//
//var ua = navigator.userAgent;
//if (/Android (\d+\.\d+)/.test(ua)) {
//    var version = parseFloat(RegExp.$1);
//    
//    if (version > 2.3) {
//        document.write('<meta name="viewport" content="width=640, minimum-scale = ' + phoneScale + ', maximum-scale = ' + phoneScale + ', target-densitydpi=device-dpi">');
//        
//    } else {
//        document.write('<meta name="viewport" content="width=640, target-densitydpi=device-dpi">');
//    }
//    
//} else {
//    document.write('<meta name="viewport" content="width=640, user-scalable=no, target-densitydpi=device-dpi">');
//}