// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
// - - - - - - ( event listener ) - - - - - - - -
// by Scott Andrew - http://scottandrew.com
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
function addEvent(obj, evType, fn)
	{
	if (obj.addEventListener)
		{
		obj.addEventListener(evType, fn, false); 
		return true;
		}
	else if (obj.attachEvent)
		{
		var r = obj.attachEvent('on'+evType, fn);
		return r;
		}
	else
		{
		return false;
		}
	}


//
// Other stuff
//

function getAvailableWidth()
{
	return screen.availWidth;
}

function getAvailableHeight()
{
	return screen.availHeight;
}

function getBrowserWidth()
{
	if (document.all)
	{
	   return document.body.clientWidth;
	}

	return window.outerWidth;
}

function getBrowserHeight()
{
	if (document.all)
	{
	   return document.body.clientHeight;
	}

	return window.outerHeight;
}

function getInnerWidth()
{
	if (document.all)
	{
	   return document.body.clientWidth;
	}

	return window.innerWidth;
}

function getInnerHeight()
{
	if (document.all)
	{
	   return document.body.clientHeight;
	}

	return window.innerHeight;
}