roller= new Array()
roller[1]= new Image(187,60)
roller[1].src ='fileadmin/Logo_spring1.jpg'
roller[2]= new Image(187,60)
roller[2].src ='fileadmin/Logo_spring2.jpg'
roller[3]= new Image(187,60)
roller[3].src ='fileadmin/Logo_spring3.jpg'
roller[4]= new Image(187,60)
roller[4].src ='fileadmin/Logo_spring4.jpg'
roller[4]= new Image(187,60)
roller[4].src ='fileadmin/Logo_spring5.jpg'
roller[4]= new Image(187,60)
roller[4].src ='fileadmin/Logo_spring6.jpg'
roller[4]= new Image(187,60)
roller[4].src ='fileadmin/Logo_spring7.jpg'

showthis=0 

function RandomSwapOut() {		
		oldroller = new Array()
		oldroller[2] = oldroller[1]
		oldroller[1] = showthis
		showthis = parseInt((Math.random()*(roller.length-1))+1);	
		if (showthis == oldroller[1]) {RandomSwapOut();}
		if (showthis == oldroller[2]) {RandomSwapOut();}
		document.Logo.src = roller[showthis].src; return true;	
}
function SwapBack() {		
	document.Logo.src = "fileadmin/baselogo.gif"; return true;	
}