$(window).load(

function (){
var currentblock = "#smallitem1";
var bigblock = "#largecontent1";

$('#smallitem1').addClass('hover')
$('#smallitem1').hover(
	function () {
		$(bigblock).hide();
		$(currentblock).removeClass('hover')
		currentblock = "#smallitem1";
		bigblock = "#largecontent1";
		$(currentblock).addClass('hover')
		$("#largecontent1").show();
	},
	function(){})

$('#smallitem2').hover(
	function () {
		$(bigblock).hide();
		$(currentblock).removeClass('hover')
		currentblock = "#smallitem2";
		bigblock = "#largecontent2";
		$(currentblock).addClass('hover')
		$("#largecontent2").show();
	},
	function(){})

$('#smallitem3').hover(
	function () {
		$(bigblock).hide();
		$(currentblock).removeClass('hover')
		currentblock = "#smallitem3";
		bigblock = "#largecontent3";
		$(currentblock).addClass('hover')
		$("#largecontent3").show();
	},
	function(){})

$('#smallitem4').hover(
	function () {
		$(bigblock).hide();
		$(currentblock).removeClass('hover')
		currentblock = "#smallitem4";
		bigblock = "#largecontent4";
		$(currentblock).addClass('hover')
		$("#largecontent4").show();
	},
	function(){})

})