Custom simple responsive / viewport resize button

<script src="http://code.jquery.com/jquery-latest.js"></script>
<script type="text/javascript">
	$(document).ready(function (){
		$(window).resize(function()
		{
			var show_width = $(window).width();
			document.getElementById("svp").value=show_width.toString();
		});
	});
</script>
<style>
	#svp{color:#fff; position:fixed; right:4px; top:0; border:0; background:#000; width:40px; text-align:center;}
	@media (max-width: 1280px) and (-webkit-min-device-pixel-ratio: 1.3) {
	 #svp{display:none;}
	}
</style>
<input type="input" id="svp" value="" name="width" />