function disableEnterKey(e)
{
     var key;

     if(window.event)
          key = window.event.keyCode;     //IE
     else
          key = e.which;     //firefox

     if(key == 13)
          return false;
     else
          return true;
}

function MyFireDefaultButton(event, target) {
/* s Microsoft.com: http://msdn2.microsoft.com/en-us/aa570318.aspx */
      
      var srcEl = event.srcElement? event.srcElement : event.target;
          
      if (event.keyCode == 13 && !(srcEl.tagName.toLowerCase() == "textarea")) {
        
        var defaultButton;
        defaultButton = document.getElementById(target);
        
        if (defaultButton) {
          if (typeof(defaultButton.click) != "undefined") {
            //kod IE: izvršava se i za gumb(a) prijava na početnoj; kod FFox je defaultButton.click=undefined!
            //gumbi
            //alert("gumb:" + defaultButton.name);
            defaultButton.click();

            event.cancelBubble = true;
            if (event.stopPropagation) event.stopPropagation();
            return false;

            } else if (typeof(defaultButton.href) != "undefined") {
            //izvršava se za FFox za LinkButton (pocetna,unos trans. dionica)
            //linkovi
            location.href=defaultButton.href;
            
            event.cancelBubble = true;
            if (event.stopPropagation) event.stopPropagation();
            return false;
            }
          }
        }

    return true;

}