function openContent1(content) {
	$("item-" + currentOpenContent).setStyle("display","none");
	$("item-" + content).setStyle("display","block");
	$("item-" + content).fade("in");
	currentOpenContent = content;
	
	var currentAmount=$("main-image-holder").getStyle("margin-top");
	var whichAmount = (content-1) * -360;
	var myFx = new  Fx.Tween('main-image-holder',{
		duration: 500,
		onComplete: function(){
		}
	});
	myFx.start('margin-top',currentAmount,whichAmount);

}