function goToUrl(url) {
	if (url!='') {
		document.location.href = url;
	}
}

/**
* opens the external window for image galleries and returns the window object
*/
function openWinImageGallery(url) {
	width = 320;
	height = 240;
	pos_x = (screen.width/2)-(width/2);
	pos_y = (screen.height/2)-(height/2);
	win = window.open(url,"ImageGallery","width="+width+", height="+height+", left="+pos_x+", top="+pos_y+", location=no, menubar=no, resizable=no, scrollbars=no, status=no, toolbar=no");
	win.focus();
}