/// <reference path="jquery-1.4.1-vsdoc.js" />

//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;
//}
//    jQuery.preloadCssImages = function(settings) {
//        settings = jQuery.extend({
//            statusTextEl: null,
//            statusBarEl: null,
//            errorDelay: 999, // handles 404-Errors in IE
//            simultaneousCacheLoading: 2
//        }, settings);
//        var allImgs = [],
//		loaded = 0,
//		imgUrls = [],
//		thisSheetRules,
//		errorTimer;

//        function onImgComplete() {
//            clearTimeout(errorTimer);
//            if (imgUrls && imgUrls.length && imgUrls[loaded]) {
//                loaded++;
//                if (settings.statusTextEl) {
//                    var nowloading = (imgUrls[loaded]) ?
//					'Now Loading: <span>' + imgUrls[loaded].split('/')[imgUrls[loaded].split('/').length - 1] :
//					'Loading complete'; // wrong status-text bug fixed
//                    jQuery(settings.statusTextEl).html('<span class="numLoaded">' + loaded + '</span> of <span class="numTotal">' + imgUrls.length + '</span> loaded (<span class="percentLoaded">' + (loaded / imgUrls.length * 100).toFixed(0) + '%</span>) <span class="currentImg">' + nowloading + '</span></span>');
//                }
//                if (settings.statusBarEl) {
//                    var barWidth = jQuery(settings.statusBarEl).width();
//                    jQuery(settings.statusBarEl).css('background-position', -(barWidth - (barWidth * loaded / imgUrls.length).toFixed(0)) + 'px 50%');
//                }
//                loadImgs();
//            }
//        }

//        function loadImgs() {
//            //only load 1 image at the same time / most browsers can only handle 2 http requests, 1 should remain for user-interaction (Ajax, other images, normal page requests...)
//            // otherwise set simultaneousCacheLoading to a higher number for simultaneous downloads
//            if (imgUrls && imgUrls.length && imgUrls[loaded]) {
//                var img = new Image(); //new img obj
//                img.src = imgUrls[loaded]; //set src either absolute or rel to css dir
//                if (!img.complete) {
//                    jQuery(img).bind('error load onreadystatechange', onImgComplete);
//                } else {
//                    onImgComplete();
//                }
//                errorTimer = setTimeout(onImgComplete, settings.errorDelay); // handles 404-Errors in IE
//            }
//        }

//        function parseCSS(sheets, urls) {
//            var w3cImport = false,
//			imported = [],
//			importedSrc = [],
//			baseURL;
//            var sheetIndex = sheets.length;
//            while (sheetIndex--) {//loop through each stylesheet

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

//                if (urls && urls[sheetIndex]) {
//                    baseURL = urls[sheetIndex];
//                } else {
//                    var csshref = (sheets[sheetIndex].href) ? sheets[sheetIndex].href : 'window.location.href';
//                    var baseURLarr = csshref.split('/'); //split href at / to make array
//                    baseURLarr.pop(); //remove file path from baseURL array
//                    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 (sheets[sheetIndex].cssRules || sheets[sheetIndex].rules) {
//                    thisSheetRules = (sheets[sheetIndex].cssRules) ? //->>> http://www.quirksmode.org/dom/w3c_css.html
//					sheets[sheetIndex].cssRules : //w3
//					sheets[sheetIndex].rules; //ie 
//                    var ruleIndex = thisSheetRules.length;
//                    while (ruleIndex--) {
//                        if (thisSheetRules[ruleIndex].style && thisSheetRules[ruleIndex].style.cssText) {
//                            var text = thisSheetRules[ruleIndex].style.cssText;
//                            if (text.toLowerCase().indexOf('url') != -1) { // only add rules to the string if you can assume, to find an image, speed improvement
//                                cssPile += text; // thisSheetRules[ruleIndex].style.cssText instead of thisSheetRules[ruleIndex].cssText is a huge speed improvement
//                            }
//                        } else if (thisSheetRules[ruleIndex].styleSheet) {
//                            imported.push(thisSheetRules[ruleIndex].styleSheet);
//                            w3cImport = true;
//                        }

//                    }
//                }
//                //parse cssPile for image urls
//                var tmpImage = cssPile.match(/[^\("]+\.(gif|jpg|jpeg|png)/g); //reg ex to get a string of between a "(" and a ".filename" / '"' for opera-bugfix
//                if (tmpImage) {
//                    var i = tmpImage.length;
//                    while (i--) { // handle baseUrl here for multiple stylesheets in different folders bug
//                        var imgSrc = (tmpImage[i].charAt(0) == '/' || tmpImage[i].match('://')) ? // protocol-bug fixed
//						tmpImage[i] :
//						baseURL + tmpImage[i];

//                        if (jQuery.inArray(imgSrc, imgUrls) == -1) {
//                            imgUrls.push(imgSrc);
//                        }
//                    }
//                }

//                if (!w3cImport && sheets[sheetIndex].imports && sheets[sheetIndex].imports.length) {
//                    for (var iImport = 0, importLen = sheets[sheetIndex].imports.length; iImport < importLen; iImport++) {
//                        var iHref = sheets[sheetIndex].imports[iImport].href;
//                        iHref = iHref.split('/');
//                        iHref.pop();
//                        iHref = iHref.join('/');
//                        if (iHref) {
//                            iHref += '/'; //tack on a / if needed
//                        }
//                        var iSrc = (iHref.charAt(0) == '/' || iHref.match('://')) ? // protocol-bug fixed
//						iHref :
//						baseURL + iHref;

//                        importedSrc.push(iSrc);
//                        imported.push(sheets[sheetIndex].imports[iImport]);
//                    }


//                }
//            } //loop
//            if (imported.length) {
//                parseCSS(imported, importedSrc);
//                return false;
//            }
//            var downloads = settings.simultaneousCacheLoading;
//            while (downloads--) {
//                setTimeout(loadImgs, downloads);
//            }
//        }
//        parseCSS(document.styleSheets);
//        return imgUrls;

//    };
//});

    $.preloadCssImages = function(settings) {
        //overrideable defaults
        settings = jQuery.extend({
            imgDir: 'images'
        }, settings);

        //dump all the css rules into one string
        var sheets = document.styleSheets;
        var cssPile = '';
        for (var i = 0; i < sheets.length; i++) {
            if (!$.browser.msie) {
                var thisSheetRules = document.styleSheets[i].cssRules;
                for (var j = 0; j < thisSheetRules.length; j++) {
                    cssPile += thisSheetRules[j].cssText;
                }
            }
            else {
                cssPile += document.styleSheets[i].cssText;
            }
        }
        //parse string for image urls and load them into the DOM
        var allImgs = []; //new array for all the image urls  
        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	 
            $(arr).each(function(k) {
                allImgs[k] = new Image(); //new img obj
                allImgs[k].src = settings.imgDir + '/' + this;
            });
        }
        return allImgs;
    }