function play_movie(id)
{
    var url = 'http://www.defabrique.nl/youtube.php?id=' + id;
    window.open(url,'','toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=425,height=350,left=450,top=250');
}

/** This is high-level function.
 * It must react to delta being more/less than zero.
 */
function handle(delta) {
        if (delta < 0)
		down();
        else if(delta > 0)
	    up();
	    else
	    stop();
}

/** 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;
}

/** Initialization code. 
 * If you use your own event management code, change it as required.
 */
if (window.addEventListener)
        /** DOMMouseScroll is for mozilla. */
        window.addEventListener('DOMMouseScroll', wheel, false);
/** IE/Opera. */
window.onmousewheel = document.onmousewheel = wheel;

function in_array(stringToSearch, arrayToSearch) {
	for (s = 0; s < arrayToSearch.length; s++) {
		thisEntry = arrayToSearch[s].toString();
		if (thisEntry == stringToSearch) {
			return true;
		}
	}
	return false;
}

function playbutton()
{
    if(document.getElementById('playknop'))
    {
        var browser_version=navigator.appVersion
        if(browser_version.match('MSIE 6.0'))
        {
            document.getElementById('playknop').style.display = 'none';
        }
    }
}