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preload css images
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| function createStyle(css) { | |
| var head = document.head || document.getElementsByTagName('head')[0], | |
| style = document.createElement('style'); | |
| style.type = 'text/css'; | |
| if (style.styleSheet) { | |
| style.styleSheet.cssText = css; | |
| } else { | |
| style.appendChild(document.createTextNode(css)); | |
| } | |
| head.appendChild(style); | |
| } | |
| var __preloaderIds = 1; | |
| function preloadStyleImages(images) { | |
| var total=0; | |
| var lastTime=5000; | |
| while(true) { | |
| var div = document.createElement('div'); | |
| div.id = "css-preloader-" + __preloaderIds; | |
| __preloaderIds++; | |
| document.getElementsByTagName("body")[0].appendChild(div); | |
| var style = "#" + div.id + ":after{\n\tposition:absolute; width:0; height:0; overflow:hidden; z-index:-1;\n\tcontent:\n"; | |
| for (var i = 0; i<15 && total < images.length; i++,total++) { | |
| style += "\turl('" + images[total] + "')"; | |
| if (i === images.length - 1) { | |
| style += ";"; | |
| } | |
| style += "\n"; | |
| } | |
| style += "}"; | |
| setTimeout((function(style){ | |
| return function(){ | |
| createStyle(style); | |
| } | |
| })(style),lastTime); | |
| lastTime+=100; | |
| if (total===images.length){ | |
| break; | |
| } | |
| } | |
| } |
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