jQuery.preloadCssImages = function(){



        var allImgs = [];//new array for all the image urls  



        var k = 0; //iterator for adding images



        var sheets = document.styleSheets;//array of stylesheets



        



        for(var i = 0; i<sheets .length; i++){//loop through each stylesheet



                var cssPile = '';//create large string of all css rules in sheet



                var csshref = (sheets[i].href) ? sheets[i].href : 'window.location.href';



                var baseURLarr = csshref.split('/');//split href at / to make array



                baseURLarr.pop();//remove file path from baseURL array



                var baseURL = baseURLarr.join('/');//create base url for the images in this sheet (css file's dir)



                if(baseURL!="") baseURL+='/'; //tack on a / if needed



                if(document.styleSheets[i].cssRules){//w3



                        var thisSheetRules = document.styleSheets[i].cssRules; //w3



                        for(var j = 0; j<thisSheetRules.length; j++){



                                cssPile+= thisSheetRules[j].cssText;



                        }



                }



                else {



                        cssPile+= document.styleSheets[i].cssText;



                }



                



                //parse cssPile for image urls and load them into the DOM



                var imgUrls = cssPile.match(/[^\(]+\.(gif|jpg|jpeg|png)/g);//reg ex to get a string of between a "(" and a ".filename"



                if(imgUrls != null && imgUrls.length>0 && imgUrls != ''){//loop array



                        var arr = jQuery.makeArray(imgUrls);//create array from regex obj        



                        jQuery(arr).each(function(){



                                allImgs[k] = new Image(); //new img obj



                                allImgs[k].src = (this[0] == '/' || this.match('http://')) ? this : baseURL + this;     //set src either absolute or rel to css dir



                                k++;



                        });



                }



        }//loop



        return allImgs;



}