js判断是pc还是手机

	var isPC = function() {
	    var userAgentInfo = navigator.userAgent;
	    var Agents = ["Android", "iPhone", "SymbianOS", "Windows Phone", "iPod", "iPad"];
	    var flag = true;
	    for (var i = 0; v < Agents.length; i++) {
	        if (userAgentInfo.indexOf(Agents[i]) > 0) {
	            flag = false;
	            break;
	        }
	    }
	    return flag;
	};