/* special thanks to http://adomas.org/javascript-mouse-wheel/ */
var divObj;
function init(){
	divObj = document.getElementById("scrollContentHolder");
	
	/** Initialization code.
	* If you use your own event management code, change it as required. */
	if (window.addEventListener)
	        /** DOMMouseScroll is for mozilla. */
	        divObj.addEventListener('DOMMouseScroll', wheel, false);
	
	
	/** IE/Opera. */
	divObj.onmousewheel = wheel;
}
function moveUp()
{
    var div = divObj;
    div.scrollTop -= 10; // orig 2
    mu = setTimeout("moveUp()", 25);
}

function moveDown()
{
    var div = divObj;
    div.scrollTop += 10; // orig 2
    md = setTimeout("moveDown()", 25);
}

function stopUp()
{
    clearTimeout(mu);
}

function stopDown()
{
    clearTimeout(md);
}

function handle(delta) {
        if (delta < 0)
					{moveDown();stopDown()}
        else
        	{moveUp();stopUp()}

}

/** Event handler for mouse wheel event.
 */
function wheel(event){
        var delta = 0;
        if (!event) /* For IE. */
                event = window.event;
        if (event.wheelDelta) { /* IE/Opera. */
                delta = event.wheelDelta/120;
                /** In Opera 9, delta differs in sign as compared to IE.
                 */
                if (window.opera)
                        delta = -delta;
        } else if (event.detail) { /** Mozilla case. */
                /** In Mozilla, sign of delta is different than in IE.
                 * Also, delta is multiple of 3.
                 */
                delta = -event.detail/3;
        }
        /** If delta is nonzero, handle it.
         * Basically, delta is now positive if wheel was scrolled up,
         * and negative, if wheel was scrolled down.
         */
        if (delta)
                handle(delta);
        /** Prevent default actions caused by mouse wheel.
         * That might be ugly, but we handle scrolls somehow
         * anyway, so don't bother here..
         */
        if (event.preventDefault)
                event.preventDefault();
	event.returnValue = false;
}