Edit in JSFiddle

	<a href="#" onclick="$('#bg1').slideUp(400);">
		<div id="bg1"></div>
	</a>
	<div id="bg2"></div>

  html, body {margin:0px;padding:0px;}
  #bg1 {width:100%; height:85px; background-color:#003e76;}
  #bg2 {width:100%; height:800px; background-color:#3C87CA;}