function addEvent(elm, evType, fn, useCapture)
	{
		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;
								}
	}