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function isMobileDevice()

{

        var agent = navigator.userAgent.toLowerCase();

       

        var otherBrowser = (agent.indexOf("series60") != -1) || (agent.indexOf("symbian") != -1) || (agent.indexOf("windows ce") != -1) || (agent.indexOf("blackberry") != -1);

        var mobileOS = typeof orientation != 'undefined' ? true : false;

        var touchOS = ('ontouchstart' in document.documentElement) ? true : false;

        var iOS = (navigator.platform.indexOf("iPhone") != -1) ||

                (navigator.platform.indexOf("iPad") != -1) ? true : false;

        var android = (agent.indexOf("android") != -1) || (!iOS && !otherBrowser && touchOS && mobileOS) ? true : false;

        if ( otherBrowser || mobileOS || touchOS || iOS || android ) return true;

        return false;

}