function preloader(){
	normal_youtube = new Image();
	normal_youtube.src = "http://www.otargos.fr/images/butt_youtube_0.jpg";
	mouseover_youtube = new Image();
	mouseover_youtube.src = "http://www.otargos.fr/images/butt_youtube_1.jpg";
	
	normal_reverb = new Image();
	normal_reverb.src = "http://www.otargos.fr/images/butt_reverb_0.jpg";
	mouseover_reverb = new Image();
	mouseover_reverb.src = "http://www.otargos.fr/images/butt_reverb_1.jpg";
	
	normal_forum = new Image();
	normal_forum.src = "http://www.otargos.fr/images/butt_forum_0.jpg";
	mouseover_forum = new Image();
	mouseover_forum.src = "http://www.otargos.fr/images/butt_forum_1.jpg";
	
	normal_faceKouy = new Image();
	normal_faceKouy.src = "http://www.otargos.fr/images/butt_facebook_0.jpg";
	mouseover_faceKouy = new Image();
	mouseover_faceKouy.src = "http://www.otargos.fr/images/butt_facebook_1.jpg";
	
	normal_myprout = new Image();	
	normal_myprout.src = "http://www.otargos.fr/images/butt_myspace_0.jpg";
	mouseover_myprout = new Image();
	mouseover_myprout.src = "http://www.otargos.fr/images/butt_myspace_1.jpg";
}

function swap(){
	if (document.images){
		for (var x=0;
			x<swap.arguments.length;
			x+=2) {
			document[swap.arguments[x]].src = eval(swap.arguments[x+1] + ".src");
		}
	}
}