var tabOpen = false;
$(document).ready(function(){
	collapse();
	function expand(){
		var tab = this;
		var caseStudyMask = $(this).parents('.caseStudyMask');
		var caseStudyContent = $(this).siblings('.caseStudyContent');
		if(tabOpen){
			collapse();
		}
		$(caseStudyMask).animate({
			style:'margin-left:0px;width:700px;'
		},"fast",function(){
			$(caseStudyContent).css("overflow","auto");
			$(tab).unbind();
			$(tab).click(collapse);
			tabOpen = true;
		});
	}
	function collapse(){
		$('.caseStudyContent').css("overflow","hidden");
		$('.caseStudyMask').animate({
			style:'width:0px;margin-left:699px;'
		},"fast",function(){
			tabOpen = false;
			$('.caseStudyTab').each(function(){
				$(this).unbind();
				$(this).click(expand);
			});
		});
	}
	$('.caseStudyClose').each(function(){
		$(this).click(collapse);
	});
});