function changeImgSrc(id,event) {
	var image = document.getElementById(id);

    if (event == 'over') {
      	image.src = 'gfx/menu/'+id+'_over.gif';
    } else {
      	image.src = 'gfx/menu/'+id+'.gif';
    }
}

// popup

function popup(img,width,height,desc,id) {
	var popup = window.open('?base=popup&i='+img+'&d='+desc+'&id='+id,'popupWin','directories=no,location=no,menubar=no,status=no,toolbar=no,scrollbars=no,resizable=no,left=50,top=50,width='+width+',height='+height);

	popup.focus();
}