function stopPropagation(e){
	if(e.stopPropagation){
		e.stopPropagation();
	}else{
		e.cancelBubble = true;
	}
}
function preventDefault(e){
	if(e.preventDefault){
		e.preventDefault();
	}else{
		e.returnValue = false;
	}
}
function AttachEvent(objectTarget, eventType, funcionHandler){
	if (objectTarget.addEventListener) { //for DOM-compliant browsers
		objectTarget.addEventListener(eventType, funcionHandler, false);
	}
	else if(objectTarget.attachEvent){ //for IE
		objectTarget.attachEvent('on' + eventType, funcionHandler);
	}
	else{ //for all others
		objectTarget['on' + eventType] = funcionHandler;
	}

}
function DetachEvent(objectTarget, eventType, funcionHandler){
	if (objectTarget.addEventListener){ //for DOM-compliant browsers
		objectTarget.removeEventListener(eventType, funcionHandler, false);
	}
	else if(objectTarget.attachEvent){ //for IE
		objectTarget.detachEvent('on' + eventType, funcionHandler);
	}
	else { //for all others
		objectTarget['on' + eventType] = '';
	}

}