var __defaultFired = false;
var __nonMSDOMBrowser = (window.navigator.appName.toLowerCase().indexOf("explorer") == -1);

function WebForm_FireDefaultButton(event, target) {
    alert('webform');
    if (!__defaultFired && event.keyCode == 13 && !(event.srcElement && (event.srcElement.tagName.toLowerCase() == "textarea"))) {
        var defaultButton;
        if (__nonMSDOMBrowser) {
            defaultButton = document.getElementById(target);
        }
        else {
            defaultButton = document.all[target];
        }
        if (defaultButton && typeof (defaultButton.click) != "undefined") {
            __defaultFired = true;
            defaultButton.click();
            event.cancelBubble = true;
            if (event.stopPropagation) event.stopPropagation();
            return false;
        }
        else if (typeof (defaultButton.click) == "undefined") {
            var clickevent = document.createEvent("MouseEvents")
            clickevent.initEvent("click", true, true)
            __defaultFired = true;
            defaultButton.dispatchEvent(clickevent)
            event.cancelBubble = true;
            if (event.stopPropagation) event.stopPropagation();
            return false;
        }
    }
    return true;
}