window.addEvent('domready', function(){
	
	$('downloaddialog').setStyle('opacity',0);
	$('supportdialog').setStyle('opacity',0);
	
	$('showsupport').addEvent('click', function(e){
		hideDialog('downloaddialog');
		showDialog('supportdialog');
		e.stop();
	});
	
	$('showdownload').addEvent('click', function(e){
		hideDialog('supportdialog');
		showDialog('downloaddialog');
		e.stop();
	});
	
});

function showDialog(whichDialog) {
	$(whichDialog).setStyle('zIndex',500);
	$(whichDialog).setStyle('visibility','visible');
	$(whichDialog).get('tween', {property:'opacity',duration:900}).start(0,1);}

function hideDialog(whichDialog) {
	$(whichDialog).setStyle('visibility','hidden');
	$(whichDialog).get('tween', {property:'opacity',duration:20}).start(1,0);
	$(whichDialog).setStyle('zIndex',20);
}