1 | //javascript:
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2 | var expSyntaxArray = [];
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3 |
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4 | Element.prototype.getElementWidth = function() {
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5 | if (typeof this.clip !== "undefined") {
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6 | return this.clip.width;
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7 | } else {
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8 | if (this.style.pixelWidth) {
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9 | return this.style.pixelWidth;
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10 | } else {
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11 | return this.offsetWidth;
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12 | }
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13 | }
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14 | };
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15 |
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16 | Element.prototype.getElementHeight = function() {
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17 | if (typeof this.clip !== "undefined") {
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18 | return this.clip.height;
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19 | } else {
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20 | if (this.style.pixelHeight) {
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21 | return this.style.pixelHeight;
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22 | } else {
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23 | return this.offsetHeight;
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24 | }
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25 | }
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26 | };
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27 |
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28 | function getElementWidth(elem)
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29 | {
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30 | if (typeof elem.clip !== "undefined") {
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31 | return elem.clip.width;
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32 | } else {
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33 | if (elem.style && elem.style.pixelWidth) {
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34 | return elem.style.pixelWidth;
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35 | } else {
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36 | return elem.offsetWidth;
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37 | }
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38 | }
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39 | }
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40 |
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41 | function getElementHeight(elem)
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42 | {
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43 | if (typeof elem.clip !== "undefined") {
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44 | return elem.clip.height;
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45 | } else {
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46 | if (elem.style && elem.style.pixelHeight) {
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47 | return elem.style.pixelHeight;
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48 | } else {
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49 | return elem.offsetHeight;
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50 | }
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51 | }
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52 | }
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53 |
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54 | function hyphenToInitialCapReplacer(str, p1, offset, s)
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55 | {
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56 | return p1.toUpperCase();
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57 | }
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58 |
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59 | function getStyle(node,style_prop)
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60 | {
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61 | var prop_val;
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62 | if (node.currentStyle) {
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63 | /* IE */
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64 | style_prop = strCssRule.replace(/\-(\w)/g, hyphenToInitialCapReplacer);
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65 | prop_val = node.currentStyle[style_prop];
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66 | }
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67 | else if (window.getComputedStyle) {
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68 | /* Firefox */
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69 | var computed_style = document.defaultView.getComputedStyle(node,null)
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70 | prop_val = computed_style.getPropertyValue(style_prop);
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71 | }
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72 | else {
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73 | /* try for inline value */
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74 | prop_val = el.style[style_prop];
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75 | }
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76 |
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77 | return prop_val;
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78 |
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79 | }
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80 |
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81 | function getElementPosition(elem)
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82 | {
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83 | var origElem = elem;
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84 |
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85 | var xl_ = 0;
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86 | var yt_ = 0;
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87 |
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88 | while(elem && !isNaN(elem.offsetLeft) && !isNaN(elem.offsetTop)) {
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89 | xl_ += elem.offsetLeft - elem.scrollLeft;
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90 | yt_ += elem.offsetTop - elem.scrollTop;
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91 | elem = elem.offsetParent;
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92 | }
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93 |
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94 | var xr_ = xl_ + getElementWidth(origElem);
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95 | var yb_ = yt_ + getElementHeight(origElem);
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96 |
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97 | return { xl: xl_, yt: yt_, xr: xr_, yb: yb_ };
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98 | }
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99 |
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100 |
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101 | function htmlToExpeditee(node)
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102 | {
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103 | var nodePos = getElementPosition(node);
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104 | var pxl = nodePos.xl;
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105 | var pyt = nodePos.yt;
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106 | var pxr = nodePos.xr;
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107 | var pyb = nodePos.yb;
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108 |
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109 | return htmlToExpediteeRec(node, pxl,pyt, pxl,pyt,pxr,pyb, 0);
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110 | }
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111 |
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112 |
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113 | function htmlToExpediteeRec(node,baseX,baseY, pxl,pyt,pxr,pyb, depth)
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114 | {
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115 | depth = (depth) ? depth : 0;
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116 |
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117 | var jsonNode = null;
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118 |
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119 | if (node.nodeType == 3) { /* text node */
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120 | var text = node.nodeValue;
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121 |
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122 | if (text.match(/\S/)) {
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123 | jsonNode = {};
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124 |
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125 | jsonNode.type = "text";
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126 | jsonNode.text = node.nodeValue;
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127 |
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128 | jsonNode.xl = pxl;
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129 | jsonNode.yt = pyt;
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130 | jsonNode.xr = pxr;
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131 | jsonNode.yb = pyb;
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132 |
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133 | var parent = node.parentNode;
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134 | if (parent != null) {
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135 | var data = parent.attributes["data"];
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136 |
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137 | if (data != null) {
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138 | jsonNode.data = data.value;
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139 | }
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140 | }
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141 |
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142 | }
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143 | }
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144 | else if (node.nodeType == 1) { /* element */
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145 |
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146 | /* need to handle: img, a, li */
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147 | /* need to dig out: text size, l/r/justified, font-face, type, colour */
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148 |
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149 | if (getStyle(node,"visibility").match("hidden")
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150 | || getStyle(node,"display").match("none")) {
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151 |
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152 | return null;
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153 | }
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154 |
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155 | var elemName = node.nodeName.toLowerCase();
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156 |
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157 | if (!elemName.match(/script/)) {
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158 |
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159 | var nodePos = getElementPosition(node);
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160 | var xl = nodePos.xl;
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161 | var xr = nodePos.xr;
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162 | var yt = nodePos.yt;
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163 | var yb = nodePos.yb;
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164 |
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165 | jsonNode = {};
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166 | jsonNode.type = "rect";
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167 | jsonNode.elem = node.nodeName;
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168 |
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169 | var rect = { "xl":xl, "yt":yt, "xr":xr, "yb":yb };
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170 | jsonNode.rect = rect;
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171 |
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172 | if (elemName.match("img")) {
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173 | jsonNode.img = node.src;
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174 | }
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175 |
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176 | var style = {};
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177 |
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178 | style["font-family"] = getStyle(node,"font-family");
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179 | style["font-size"] = getStyle(node,"font-size");
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180 | style["background-color"] = getStyle(node,"background-color");
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181 |
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182 | // console.log("background color = " + style["background-color"]);
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183 |
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184 | // console.log("font size = " + style["font-size"]);
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185 |
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186 | jsonNode.style = style
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187 |
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188 | var jsonChildNodes = [];
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189 |
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190 | var cnode = node.firstChild;
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191 | while (cnode != null) {
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192 |
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193 | var jsonChildNode
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194 | = htmlToExpediteeRec(cnode,baseX,baseY,xl,yt,xr,yb,depth+1);
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195 |
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196 | if (jsonChildNode != null) {
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197 | jsonChildNodes.push(jsonChildNode);
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198 | }
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199 |
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200 | cnode = cnode.nextSibling;
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201 | }
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202 |
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203 | jsonNode.childNodes = jsonChildNodes;
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204 | }
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205 |
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206 | }
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207 | /* currently do nothing for the other node types */
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208 |
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209 | return jsonNode;
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210 | }
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211 |
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212 |
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213 | //var body = document.body;
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214 | //alert(traverseDOM(body)); |
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