var browser=navigator.appName;
	var imgs = new Array('/images/GIJ-header1.jpg','/images/GIJ-header2.jpg','/images/GIJ-header3.jpg','/images/GIJ-header4.jpg','/images/GIJ-header5.jpg','/images/GIJ-header6.jpg','/images/GIJ-header7.jpg');
	var delay = 5000;
	var counter = 0;
	var cnt = 0;
	function rotateImage() {
		if	(counter == (imgs.length)){
			counter = 0;
		}

		var el = document.getElementById('hd-image');
		el.style.background= 'url('+imgs[counter++]+')  no-repeat left top';
		if (browser=="Microsoft Internet Explorer") {
			el.style.filter ='progid:DXImageTransform.Microsoft.Fade(duration=5)';
			el.filters.item(0).Apply();
			el.filters.item(0).Play()
		}

}
	
function ChangeImage (pos) {
	
	var el = document.getElementById('course-image');
	el.src = CrsImgs[pos];
	if (browser=="Microsoft Internet Explorer") {
		el.style.filter ='progid:DXImageTransform.Microsoft.Fade(duration=2)';
		el.filters.item(0).Apply();
		el.filters.item(0).Play();
	}
	
}

function Next() {
	if (cnt < CrsImgs.length - 1) {
      cnt++;
    } else if (cnt == (CrsImgs.length-1)) {
      cnt = 0;
    }
	update();

}

function Previous() {
	if (cnt > 0) {
      cnt--;
    } else if (cnt == 0) {
      cnt = CrsImgs.length -1;
    }	
	update();	
}

function update() {
	var el = document.getElementById('slide-image');
	el.src = CrsImgs[cnt];
	if (browser=="Microsoft Internet Explorer") {
		el.style.filter ='progid:DXImageTransform.Microsoft.Fade(duration=2)';
		el.filters.item(0).Apply();
		el.filters.item(0).Play();
	}	

}


function Slide(time) {
	//setTimeout("Next()", time);
	setInterval ('Next()', delay);
}

var JMenu = new Class({
	initialize: function(el)
	{
		var elements = $ES('li', el);
		var nested = null
		for (var i=0; i<elements.length; i++)
		{
			var element = elements[i];

			element.addEvent('mouseover', function(){ this.addClass('hover'); });
			element.addEvent('mouseout', function(){ this.removeClass('hover'); });

			//find nested UL
			nested = $E('ul', element);
			if(!nested) {
				continue;
			}

			//declare width
			var offsetWidth  = 0;

			//find longest child
			for (k=0; k < nested.childNodes.length; k++) {
				var node  = nested.childNodes[k]
				if (node.nodeName == "LI")
					offsetWidth = (offsetWidth >= node.offsetWidth) ? offsetWidth :  node.offsetWidth;
			}

			//match longest child
			for (l=0; l < nested.childNodes.length; l++) {
				var node = nested.childNodes[l]
				if (node.nodeName == "LI") {
					$(node).setStyle('width', offsetWidth+'px');
				}
			}

			$(nested).setStyle('width', offsetWidth+'px');
		}
	}
});

try {
  document.execCommand('BackgroundImageCache', false, true);
} catch(e) {}

document.menu = null
window.addEvent('load', function(){
	element = $('menu')
	if(!element.hasClass('disabled')) {
		var menu = new JMenu(element)
		document.menu = menu
	}
});