/**
* DD_belatedPNG: Adds IE6 support: PNG images for CSS background-image and HTML <IMG/>.
* Author: Drew Diller
* Email: drew.diller@gmail.com
* URL: http://www.dillerdesign.com/experiment/DD_belatedPNG/
* Version: 0.0.8a
* Licensed under the MIT License: http://dillerdesign.com/experiment/DD_belatedPNG/#license
*
* Example usage:
* DD_belatedPNG.fix('.png_bg'); // argument is a CSS selector
* DD_belatedPNG.fixPng( someNode ); // argument is an HTMLDomElement
**/
var DD_belatedPNG = { ns: "DD_belatedPNG", imgSize: {}, delay: 10, nodesFixed: 0, createVmlNameSpace: function() { if (document.namespaces && !document.namespaces[this.ns]) { document.namespaces.add(this.ns, "urn:schemas-microsoft-com:vml") } }, createVmlStyleSheet: function() { var b, a; b = document.createElement("style"); b.setAttribute("media", "screen"); document.documentElement.firstChild.insertBefore(b, document.documentElement.firstChild.firstChild); if (b.styleSheet) { b = b.styleSheet; b.addRule(this.ns + "\\:*", "{behavior:url(#default#VML)}"); b.addRule(this.ns + "\\:shape", "position:absolute;"); b.addRule("img." + this.ns + "_sizeFinder", "behavior:none; border:none; position:absolute; z-index:-1; top:-10000px; visibility:hidden;"); this.screenStyleSheet = b; a = document.createElement("style"); a.setAttribute("media", "print"); document.documentElement.firstChild.insertBefore(a, document.documentElement.firstChild.firstChild); a = a.styleSheet; a.addRule(this.ns + "\\:*", "{display: none !important;}"); a.addRule("img." + this.ns + "_sizeFinder", "{display: none !important;}") } }, readPropertyChange: function() { var b, c, a; b = event.srcElement; if (!b.vmlInitiated) { return } if (event.propertyName.search("background") != -1 || event.propertyName.search("border") != -1) { DD_belatedPNG.applyVML(b) } if (event.propertyName == "style.display") { c = (b.currentStyle.display == "none") ? "none" : "block"; for (a in b.vml) { if (b.vml.hasOwnProperty(a)) { b.vml[a].shape.style.display = c } } } if (event.propertyName.search("filter") != -1) { DD_belatedPNG.vmlOpacity(b) } }, vmlOpacity: function(b) { if (b.currentStyle.filter.search("lpha") != -1) { var a = b.currentStyle.filter; a = parseInt(a.substring(a.lastIndexOf("=") + 1, a.lastIndexOf(")")), 10) / 100; b.vml.color.shape.style.filter = b.currentStyle.filter; b.vml.image.fill.opacity = a } }, handlePseudoHover: function(a) { setTimeout(function() { DD_belatedPNG.applyVML(a) }, 1) }, fix: function(a) { if (this.screenStyleSheet) { var c, b; c = a.split(","); for (b = 0; b < c.length; b++) { this.screenStyleSheet.addRule(c[b], "behavior:expression(DD_belatedPNG.fixPng(this))") } } }, applyVML: function(a) { a.runtimeStyle.cssText = ""; this.vmlFill(a); this.vmlOffsets(a); this.vmlOpacity(a); if (a.isImg) { this.copyImageBorders(a) } }, attachHandlers: function(i) { var d, c, g, e, b, f; d = this; c = { resize: "vmlOffsets", move: "vmlOffsets" }; if (i.nodeName == "A") { e = { mouseleave: "handlePseudoHover", mouseenter: "handlePseudoHover", focus: "handlePseudoHover", blur: "handlePseudoHover" }; for (b in e) { if (e.hasOwnProperty(b)) { c[b] = e[b] } } } for (f in c) { if (c.hasOwnProperty(f)) { g = function() { d[c[f]](i) }; i.attachEvent("on" + f, g) } } i.attachEvent("onpropertychange", this.readPropertyChange) }, giveLayout: function(a) { a.style.zoom = 1; if (a.currentStyle.position == "static") { a.style.position = "relative" } }, copyImageBorders: function(b) { var c, a; c = { borderStyle: true, borderWidth: true, borderColor: true }; for (a in c) { if (c.hasOwnProperty(a)) { b.vml.color.shape.style[a] = b.currentStyle[a] } } }, vmlFill: function(e) { if (!e.currentStyle) { return } else { var d, f, g, b, a, c; d = e.currentStyle } for (b in e.vml) { if (e.vml.hasOwnProperty(b)) { e.vml[b].shape.style.zIndex = d.zIndex } } e.runtimeStyle.backgroundColor = ""; e.runtimeStyle.backgroundImage = ""; f = true; if (d.backgroundImage != "none" || e.isImg) { if (!e.isImg) { e.vmlBg = d.backgroundImage; e.vmlBg = e.vmlBg.substr(5, e.vmlBg.lastIndexOf('")') - 5) } else { e.vmlBg = e.src } g = this; if (!g.imgSize[e.vmlBg]) { a = document.createElement("img"); g.imgSize[e.vmlBg] = a; a.className = g.ns + "_sizeFinder"; a.runtimeStyle.cssText = "behavior:none; position:absolute; left:-10000px; top:-10000px; border:none; margin:0; padding:0;"; c = function() { this.width = this.offsetWidth; this.height = this.offsetHeight; g.vmlOffsets(e) }; a.attachEvent("onload", c); a.src = e.vmlBg; a.removeAttribute("width"); a.removeAttribute("height"); document.body.insertBefore(a, document.body.firstChild) } e.vml.image.fill.src = e.vmlBg; f = false } e.vml.image.fill.on = !f; e.vml.image.fill.color = "none"; e.vml.color.shape.style.backgroundColor = d.backgroundColor; e.runtimeStyle.backgroundImage = "none"; e.runtimeStyle.backgroundColor = "transparent" }, vmlOffsets: function(d) { var h, n, a, e, g, m, f, l, j, i, k; h = d.currentStyle; n = { W: d.clientWidth + 1, H: d.clientHeight + 1, w: this.imgSize[d.vmlBg].width, h: this.imgSize[d.vmlBg].height, L: d.offsetLeft, T: d.offsetTop, bLW: d.clientLeft, bTW: d.clientTop }; a = (n.L + n.bLW == 1) ? 1 : 0; e = function(b, p, q, c, s, u) { b.coordsize = c + "," + s; b.coordorigin = u + "," + u; b.path = "m0,0l" + c + ",0l" + c + "," + s + "l0," + s + " xe"; b.style.width = c + "px"; b.style.height = s + "px"; b.style.left = p + "px"; b.style.top = q + "px" }; e(d.vml.color.shape, (n.L + (d.isImg ? 0 : n.bLW)), (n.T + (d.isImg ? 0 : n.bTW)), (n.W - 1), (n.H - 1), 0); e(d.vml.image.shape, (n.L + n.bLW), (n.T + n.bTW), (n.W), (n.H), 1); g = { X: 0, Y: 0 }; if (d.isImg) { g.X = parseInt(h.paddingLeft, 10) + 1; g.Y = parseInt(h.paddingTop, 10) + 1 } else { for (j in g) { if (g.hasOwnProperty(j)) { this.figurePercentage(g, n, j, h["backgroundPosition" + j]) } } } d.vml.image.fill.position = (g.X / n.W) + "," + (g.Y / n.H); m = h.backgroundRepeat; f = { T: 1, R: n.W + a, B: n.H, L: 1 + a }; l = { X: { b1: "L", b2: "R", d: "W" }, Y: { b1: "T", b2: "B", d: "H"} }; if (m != "repeat" || d.isImg) { i = { T: (g.Y), R: (g.X + n.w), B: (g.Y + n.h), L: (g.X) }; if (m.search("repeat-") != -1) { k = m.split("repeat-")[1].toUpperCase(); i[l[k].b1] = 1; i[l[k].b2] = n[l[k].d] } if (i.B > n.H) { i.B = n.H } d.vml.image.shape.style.clip = "rect(" + i.T + "px " + (i.R + a) + "px " + i.B + "px " + (i.L + a) + "px)" } else { d.vml.image.shape.style.clip = "rect(" + f.T + "px " + f.R + "px " + f.B + "px " + f.L + "px)" } }, figurePercentage: function(d, c, f, a) { var b, e; e = true; b = (f == "X"); switch (a) { case "left": case "top": d[f] = 0; break; case "center": d[f] = 0.5; break; case "right": case "bottom": d[f] = 1; break; default: if (a.search("%") != -1) { d[f] = parseInt(a, 10) / 100 } else { e = false } } d[f] = Math.ceil(e ? ((c[b ? "W" : "H"] * d[f]) - (c[b ? "w" : "h"] * d[f])) : parseInt(a, 10)); if (d[f] % 2 === 0) { d[f]++ } return d[f] }, fixPng: function(c) { c.style.behavior = "none"; var g, b, f, a, d; if (c.nodeName == "BODY" || c.nodeName == "TD" || c.nodeName == "TR") { return } c.isImg = false; if (c.nodeName == "IMG") { if (c.src.toLowerCase().search(/\.png$/) != -1) { c.isImg = true; c.style.visibility = "hidden" } else { return } } else { if (c.currentStyle.backgroundImage.toLowerCase().search(".png") == -1) { return } } g = DD_belatedPNG; c.vml = { color: {}, image: {} }; b = { shape: {}, fill: {} }; for (a in c.vml) { if (c.vml.hasOwnProperty(a)) { for (d in b) { if (b.hasOwnProperty(d)) { f = g.ns + ":" + d; c.vml[a][d] = document.createElement(f) } } c.vml[a].shape.stroked = false; c.vml[a].shape.appendChild(c.vml[a].fill); c.parentNode.insertBefore(c.vml[a].shape, c) } } c.vml.image.shape.fillcolor = "none"; c.vml.image.fill.type = "tile"; c.vml.color.fill.on = false; g.attachHandlers(c); g.giveLayout(c); g.giveLayout(c.offsetParent); c.vmlInitiated = true; g.applyVML(c) } }; try { document.execCommand("BackgroundImageCache", false, true) } catch (r) { } DD_belatedPNG.createVmlNameSpace(); DD_belatedPNG.createVmlStyleSheet();