function getSize(o){
	
	div = document.getElementById(o.div)
	return div.offsetHeight / div.scrollHeight;
}

function change(o){
	div = document.getElementById(o.div);
	div.scrollTop = o.value * (div.scrollHeight-div.offsetHeight);
	
}



function getMovieName(movieName) {
   if (navigator.appName.indexOf("Microsoft") != -1) {
        return window[movieName];
   }
   else {
       return document[movieName];
   }
}





////////////////////////
function handle(div, delta) {
	//div.sb.setPosition( (div.scrollTop-delta*40) /div.scrollHeight);    
}

function wheel(event){
	var delta = 0;
	if (!event)event = window.event;
	if (event.wheelDelta) {
		delta = event.wheelDelta/120;
		if (window.opera)delta = -delta;
	} else if (event.detail) {
		delta = -event.detail/3;
	}
	if (delta)handle(event.target,delta);
	if (event.preventDefault)
	event.preventDefault();
	event.returnValue = false;
}