hs.graphicsDir = 'js/graphics/';
hs.align = 'center';
hs.transitions = ['expand', 'crossfade'];
hs.outlineType = 'rounded-white';
hs.fadeInOut = true;
//hs.dimmingOpacity = 0.75;

// Add the controlbar
hs.addSlideshow({
	//slideshowGroup: 'group1',
	interval: 5000,
	repeat: false,
	useControls: true,
	fixedControls: 'fit',
	overlayOptions: {
		opacity: .75,
		position: 'bottom center',
		hideOnMouseOut: true
	}
});

function switch_vis(element){ 
	if (document.getElementById(element).style.display == "none" || document.getElementById(element).style.display == "" )
    { 
    	document.getElementById(element).style.display = "block" ; 
     }else{ 
     document.getElementById(element).style.display = "none" ; 
     }
}