"

From 2011.igem.org

/* Copyright 2008 Paul Bennett - http://paulicio.us

* Scroller.js
* Captures mouse wheel events and runs the ScrollSmoothly
* function based on their output.
* Aims to aid usability by allowing the user to scroll the 
* page horizontally smoothly using only their mousewheel.
* Mousewheel event capture by Adomas Paltanavičius at http://adomas.org/
*/

function handle(delta) {

       if (delta <0)
               ScrollSmoothly(10,10,'right');
       else if (delta >0)
               ScrollSmoothly(10,10,'left');
       else
       	;

}

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(delta);
       if (event.preventDefault)
               event.preventDefault();

event.returnValue = false; }

var repeatCount = 0;

function ScrollSmoothly(scrollPos,repeatTimes, direction) { if(repeatCount < repeatTimes) if(direction == 'right') window.scrollBy(20,0); else window.scrollBy(-20,0); else { repeatCount = 0; clearTimeout(cTimeout); return; } repeatCount++; cTimeout = setTimeout("ScrollSmoothly('" + scrollPos + "','"+ repeatTimes +"','"+ direction +"')",10); }

/* Initialization code. */ if (window.addEventListener)

       window.addEventListener('DOMMouseScroll', wheel, false);

window.onmousewheel = document.onmousewheel = wheel;