Detect IE compatibility mode and version using JavaScript

Even though it is not recommended, following Javascript can be used to detect the IE compatibility mode.

// Create new object

var ieUserAgent = {
init: function () {
 
var ua = navigator.userAgent;
this.compatibilityMode = false;

    if(ua.indexOf("MSIE") == -1){
        this.version = 0;
        return 0;
    }

    if(ua.indexOf("compatible") == -1){
        this.compatibilityMode = false;
        return 0;

    }else{
        this.compatibilityMode = true;
        return 0;
    }
}

};

// Initialize the ieUserAgent object
ieUserAgent.init();

Read this thread for more details of the script.

Cheers,
Samitha