function GetBrowser() {
    var agt = navigator.userAgent.toLowerCase();
    if (agt.indexOf("opera") != -1) return 'Opera';
    if (agt.indexOf("firefox") != -1) return 'FireFox';
    if (agt.indexOf("safari") != -1) return 'Safari';
    if (agt.indexOf("msie") != -1) return 'Internet Explorer';
    if (agt.indexOf("netscape") != -1) return 'Netscape';
    if (agt.indexOf("mozilla/5.0") != -1) return 'Mozilla';
    if (agt.indexOf('\/') != -1) {
        if (agt.substr(0, agt.indexOf('\/')) != 'mozilla') {
            return navigator.userAgent.substr(0, agt.indexOf('\/'));
        } else {
            return 'Netscape';
        }
    } else if (agt.indexOf(' ') != -1) {
        return navigator.userAgent.substr(0, agt.indexOf(' '));
    } else {
        return navigator.userAgent;
    }
}

function isNull(_sVal) { return (_sVal === "" || _sVal === null || _sVal === undefined); }

////Enable FireFox browsers to call .click() via javascript the way IE does
//HTMLAnchorElement.prototype.click = function() {
//var evt = this.ownerDocument.createEvent('MouseEvents');
//evt.initMouseEvent('click', true, true, this.ownerDocument.defaultView, 1, 0, 0, 0, 0, false, false, false, false, 0, null);
//this.dispatchEvent(evt);
//}
if (GetBrowser() == 'FireFox') {
    HTMLElement.prototype.click = function() {
        var evt = this.ownerDocument.createEvent('MouseEvents');
        evt.initMouseEvent('click', true, true, this.ownerDocument.defaultView, 1, 0, 0, 0, 0, false, false, false, false, 0, null);
        this.dispatchEvent(evt);
    }
}