/**
* Fullscreenr - lightweight full screen background jquery plugin
* By Jan Schneiders
* Version 1.0
* www.nanotux.com
**/
(function($){	
$.fn.fullscreenr = function(options) {
if(options.height === undefined) alert('Please supply the background image height, default values will now be used. These may be very inaccurate.');
if(options.width === undefined) alert('Please supply the background image width, default values will now be used. These may be very inaccurate.');
if(options.bgID === undefined) alert('Please supply the background image ID, default #bgimg will now be used.');
var defaults = { width: 1280,  height: 1024, bgID: 'bgimg' };
var options = $.extend({}, defaults, options); 
$(document).ready(function() { $(options.bgID).fullscreenrResizer(options);	});
$(window).bind("resize", function() { $(options.bgID).fullscreenrResizer(options); });		
return this; 		
};	
$.fn.fullscreenrResizer = function(options) {
// Set bg size
var ratio = options.height / options.width;	
// Get browser window size
var browserwidth = $(window).width();
var browserheight = $(window).height();
// Scale the image
if ((browserheight/browserwidth) > ratio){
$(this).height(browserheight);
$(this).width(browserheight / ratio);
} else {
$(this).width(browserwidth);
$(this).height(browserwidth * ratio);
}
// Center the image
$(this).css('left', (browserwidth - $(this).width())/2);
$(this).css('top', (browserheight - $(this).height())/2);
return this; 		
};
})(jQuery);

var FullscreenrOptions = {  width: 1920, height: 1080, bgID: '#bgimg' };
// This will activate the full screen background!
jQuery.fn.fullscreenr(FullscreenrOptions);