function WebForm_FireDefaultButton(event, target) 
{
    var element = event.target || event.srcElement;
    
    if (event.keyCode == 13 && !(element && (element.tagName.toLowerCase() == "textarea"))) 
    { 
        var defaultButton;
        if (__nonMSDOMBrowser) 
        {
            defaultButton = document.getElementById(target);
        }
        else 
        {
            defaultButton = document.all[target];
        }
        
        
        if (defaultButton && typeof(defaultButton.click) != "undefined") 
        {
            defaultButton.click();
            event.cancelBubble = true;
            
            if (event.stopPropagation) 
                event.stopPropagation();
            
            return false;
        }
        
    }
return true;
}