function addEvent(elm, evType, fn, useCapture)
// cross-browser event handling for IE5+, NS6+ and Mozilla 
// By Scott Andrew 
{
  if (elm.addEventListener) { 
    elm.addEventListener(evType, fn, useCapture); 
    return true; 
  } else if (elm.attachEvent) { 
    var r = elm.attachEvent('on' + evType, fn); 
    return r; 
  } else {
    elm['on' + evType] = fn;
  }
}

function dropEvent(elm, evType, fn, useCapture)
// cross-browser event handling for IE5+, NS6+ and Mozilla 
// By Greg Robbins :P 
{
  if (elm.removeEventListener) { 
    elm.removeEventListener(evType, fn, useCapture); 
    return true; 
  } else if (elm.detachEvent) { 
    var r = elm.detachEvent('on' + evType, fn); 
    return r; 
  } else {
    elm['on' + evType] = null;
  }
}

// climb up the tree to the supplied tag.
function ascendDOM(e, target) {
  while (e.nodeName.toLowerCase() != target && e.nodeName.toLowerCase() != 'html')
  {
  	e = e.parentNode;
  	//alert(e);
  }
  return (e.nodeName.toLowerCase() == 'html') ? null : e;
}

function fetchTarget(e)
{
	if(window.event && window.event.srcElement)
	{
		return window.event.srcElement;
	}
	else if(e && e.target)
	{
		return e.target;
	}
	else
	{
		return;
	}
}





function loadDownloadButtons()
{
	imgArr = document.getElementsByTagName("IMG");
	inputArr = document.getElementsByTagName("INPUT");
	
	for(i = 0; i < imgArr.length; i++)
	{
		if(imgArr[i].src.match(/_(es|ca|en)_off/))
		{
			//addEvent(imgArr[i], "click", pageShiftUp, false);
			addEvent(imgArr[i], "mouseover", shiftRollOn, false);
			addEvent(imgArr[i], "mouseout", shiftRollOff, false);
		}
	}
	for(i = 0; i < inputArr.length; i++)
	{
		if(inputArr[i].src.match(/_(es|ca|en)_off/))
		{
			//addEvent(imgArr[i], "click", pageShiftUp, false);
			addEvent(inputArr[i], "mouseover", shiftRollOn, false);
			addEvent(inputArr[i], "mouseout", shiftRollOff, false);
		}
	}
}


function addListeners(e)
{
	if (!document.getElementsByTagName) return;
	if(document.loadSectionButtons) loadSectionButtons();
	if(document.loadPageButtons) loadPageButtons();
	if(document.loadDownloadButtons) loadDownloadButtons();
}



addEvent(window, 'load', addListeners, false);