// JavaScript Document
(function($) {
  jQuery.fn.fullBg = function(setWidth, setHeight){
    $('body').addClass('home');
	var bgImg = $(this);		 
    function resizeImg() {
	  if ((setWidth > 0) && (setHeight > 0)) {
		  	var imgwidth = setWidth;
		  	var imgheight = setHeight;
      } else {
      		var imgwidth = bgImg.width();
		  	var imgheight = bgImg.height();
	  }
	  var winwidth = $(window).width();
      var winheight = $(window).height();
	  
	  if (winheight < 500) { winheight = 500; }
	
      var widthratio = winwidth / imgwidth;
      var heightratio = winheight / imgheight;
 
      var widthdiff = Math.floor(heightratio * imgwidth);
      var heightdiff = Math.floor(widthratio * imgheight);
	  var margleft = widthdiff / 2;		
        bgImg.css({
          width: 		widthdiff+'px',
          height: 		winheight+'px',
		  position: 	'absolute',
		  left: 		'50%',
		  top:			'0px',
		  marginLeft: 	'-' + margleft + 'px'	
		}).fadeIn();
    } 
    resizeImg();
	
    $(window).resize(function() {
      resizeImg();
    }); 
  };
})(jQuery)