function showSponsors(sponsortype) {
	switch(sponsortype) {
		case "platinum":
			if ($("gold_sponsors").style.display != "none") {
				new Effect.SlideUp("gold_sponsors", {
								   delay:0.15,
								   duration:0.25,
								   fps:30,
								   transition:Effect.Transitions.linear,
								   afterFinish:function() {
									   new Effect.SlideDown("platinum_sponsors", {
															delay:0.15,
															duration:0.25,
															fps:30,
															transition:Effect.Transitions.linear });
								   }
				});
			} else if ($("platinum_sponsors").style.display != "none") {
				new Effect.SlideUp("platinum_sponsors", {
								   delay:0.15,
								   duration:0.25,
								   fps:30,
								   transition:Effect.Transitions.linear });				
			} else {
				new Effect.SlideDown("platinum_sponsors", {
									 delay:0.15,
									 duration:0.25,
									 fps:30,
									 transition:Effect.Transitions.linear });
			}
		break;
		
		case "gold":
			if ($("platinum_sponsors").style.display != "none") {
				new Effect.SlideUp("platinum_sponsors", {
								   delay:0.15,
								   duration:0.25,
								   fps:30,
								   transition:Effect.Transitions.linear,
								   afterFinish:function() {
									   new Effect.SlideDown("gold_sponsors", {
															delay:0.15,
															duration:0.25,
															fps:30,
															transition:Effect.Transitions.linear });
								   }
				});
			} else if ($("gold_sponsors").style.display != "none") {
				new Effect.SlideUp("gold_sponsors", {
								   delay:0.15,
								   duration:0.25,
								   fps:30,
								   transition:Effect.Transitions.linear });
			} else {
				new Effect.SlideDown("gold_sponsors", {
									 delay:0.15,
									 duration:0.25,
									 fps:30,
									 transition:Effect.Transitions.linear });
			}
		break;
	}
}