function loaded() {

	if (navigator.userAgent.indexOf("MSIE") > 0) {
		document.attachEvent("onkeypress",onKeyPressIE);
		document.getElementById("slidecontent").style.height = "600px";

	} else {
    	    document.addEventListener("keypress",onKeyPress,false);
    	    document.getElementById("slidecontent").style.minHeight = "600px";

    	}

}

function onKeyPress(e)
{
        switch (e.keyCode)
        {
            case e.DOM_VK_LEFT:
			case e.DOM_VK_UP:
            switchSlide(prevSlideNr );
            e.preventDefault();
            break;
            case e.DOM_VK_RIGHT:
			case e.DOM_VK_DOWN:
            switchSlide(nextSlideNr );
            e.preventDefault();
            break;
            case e.DOM_VK_HOME:
            window.location.href = 'title.php';
            e.preventDefault();
            break;
            case e.DOM_VK_END:
            window.location.href = 'toc.php';
            e.preventDefault();
            break;

        }
        switch (e.charCode)
        {

            /*case e.DOM_VK_SPACE: // backspace
            switchSlide(nextSlideNr);
        	e.preventDefault();

            break;*/
        }

}

function onKeyPressIE(e) {
	switch(window.event.keyCode)
	{
		case 32:
	        switchSlide(nextSlideNr );
        	return false;
	}

}

function switchSlide(href) {

	if (href) {
		window.location.href = href;
	}

}