var DKI = {}

DKI.addEventSimple = function(obj,evt,fn) {
    if (obj.addEventListener)
        obj.addEventListener(evt,fn,false);
    else if (obj.attachEvent)
        obj.attachEvent('on'+evt,fn);
}

DKI.removeEventSimple = function(obj,evt,fn) {
    if (obj.removeEventListener)
        obj.removeEventListener(evt,fn,false);
    else if (obj.detachEvent)
        obj.detachEvent('on'+evt,fn);
}

DKI.createCookie = function(name,value,days) {
    if (days) {
        var date = new Date();
        date.setTime(date.getTime()+(days*24*60*60*1000));
        var expires = "; expires="+date.toGMTString();
    }
    else var expires = "";
    document.cookie = name+"="+value+expires+"; path=/";
}

DKI.readCookie = function(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for(var i=0;i < ca.length;i++) {
        var c = ca[i];
        while (c.charAt(0)==' ') c = c.substring(1,c.length);
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
    }
    return null;
}

DKI.eraseCookie = function(name) {
    createCookie(name,"",-1);
}

String.prototype.trim = function () {
    return this.replace(/^\s+|\s+$/g, "");
};