1 | (function() |
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2 | { |
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3 | var _element = null; |
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4 | var _elementA = null; |
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5 | var _elementB = null; |
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6 | var _parent = null; |
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7 | |
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8 | function _configEvent( pObj, pEvent, pHandler ) |
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9 | { |
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10 | if ( pObj && typeof pObj == 'object' ) |
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11 | { |
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12 | if ( pEvent.substring(0, 2) == 'on' ) |
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13 | pEvent = pEvent.substring(2, pEvent.length); |
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14 | |
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15 | if ( arguments.length == 3 ) |
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16 | { |
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17 | if ( pObj.addEventListener ) |
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18 | pObj.addEventListener(pEvent, pHandler, false); |
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19 | else if ( pObj.attachEvent ) |
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20 | pObj.attachEvent('on' + pEvent, pHandler); |
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21 | } |
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22 | else if ( arguments.length == 4 ) |
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23 | { |
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24 | if ( pObj.removeEventListener ) |
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25 | { |
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26 | pObj.removeEventListener( pEvent, pHandler, false ); |
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27 | } |
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28 | else if ( pObj.detachEvent ) |
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29 | { |
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30 | pObj.detachEvent( 'on' + pEvent, pHandler ); |
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31 | } |
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32 | } |
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33 | } |
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34 | } |
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35 | |
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36 | function _drag(e) |
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37 | { |
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38 | if (typeof e.preventDefault != 'undefined') |
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39 | e.preventDefault(); |
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40 | else |
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41 | e.onselectstart = new Function("return false;"); |
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42 | |
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43 | _element = ( e.target ) ? e.target : e.srcElement; |
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44 | |
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45 | if ( _element ) |
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46 | { |
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47 | _configEvent(_element, 'onmousemove', _mouseMove); |
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48 | _configEvent(top.document, 'onmousemove', _mouseMove); |
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49 | |
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50 | _configEvent(_element, 'onmouseup', _mouseUp); |
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51 | _configEvent(top.document, 'onmouseup', _mouseUp); |
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52 | } |
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53 | } |
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54 | |
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55 | function _elementShadow( pId ) |
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56 | { |
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57 | if( _elementA ) |
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58 | { |
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59 | var _elShadow = document.createElement("div"); |
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60 | _elShadow.id = _elementA.id + "__Shadow"; |
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61 | _elShadow.setAttribute("onselectstart" , "return false"); |
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62 | _elShadow.style.width = _elementA.style.width; |
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63 | _elShadow.style.height = _elementA.style.height; |
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64 | _elShadow.style.top = _elementA.style.top; |
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65 | _elShadow.style.left = _elementA.style.left; |
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66 | _elShadow.style.zIndex = _elementA.style.zIndex; |
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67 | _elShadow.className = "x-shadow_Div"; |
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68 | |
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69 | return _elShadow; |
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70 | } |
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71 | } |
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72 | |
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73 | function _load() |
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74 | { |
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75 | if( arguments.length > 0 ) |
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76 | { |
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77 | var pId = arguments[0]; |
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78 | |
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79 | _configEvent(document.getElementById( pId + "__draggable"), 'onmousedown', _mouseDownShadow); |
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80 | } |
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81 | } |
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82 | |
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83 | function _getMouseOffset(e, el) |
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84 | { |
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85 | var docPos = _getPosition(el); |
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86 | var mousePos = _mouseCoords(e); |
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87 | return { |
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88 | 'x' : mousePos.x - docPos.x, |
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89 | 'y' : mousePos.y - docPos.y |
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90 | }; |
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91 | } |
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92 | |
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93 | function _getPosition(_pObject) |
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94 | { |
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95 | var left = 0; |
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96 | var top = 0; |
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97 | |
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98 | while ( _pObject.offsetParent ) |
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99 | { |
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100 | left += _pObject.offsetLeft; |
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101 | top += _pObject.offsetTop; |
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102 | _pObject = _pObject.offsetParent; |
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103 | } |
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104 | |
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105 | left += _pObject.offsetLeft; |
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106 | top += _pObject.offsetTop; |
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107 | |
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108 | return { |
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109 | 'x' : left, |
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110 | 'y' : top |
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111 | }; |
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112 | } |
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113 | |
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114 | function _mouseCoords(ev) |
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115 | { |
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116 | var CoordX = ""; |
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117 | var CoordY = ""; |
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118 | |
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119 | if ( ev.pageX || ev.pageY ) |
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120 | return { |
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121 | 'x' : ev.pageX, |
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122 | 'y' : ev.pageY |
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123 | }; |
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124 | |
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125 | CoordX = ev.clientX + document.body.scrollLeft - document.body.clientLeft; |
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126 | CoordY = ev.clientY + document.body.scrollTop - document.body.clientTop; |
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127 | |
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128 | return { |
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129 | 'x' : CoordX, |
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130 | 'y' : CoordY |
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131 | }; |
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132 | } |
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133 | |
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134 | function _mouseMove(e) |
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135 | { |
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136 | if ( _element ) |
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137 | { |
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138 | if ( _element.mouseOffset == null ) |
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139 | _element.mouseOffset = _getMouseOffset(e, _element); |
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140 | |
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141 | var mousePos = _mouseCoords(e); |
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142 | |
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143 | var x = mousePos.x - _element.mouseOffset.x; |
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144 | var y = mousePos.y - _element.mouseOffset.y; |
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145 | _element.style.left = (( x < 0 ) ? 0 : x) + 'px'; |
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146 | _element.style.top = (( y < 0 ) ? 0 : y) + 'px'; |
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147 | } |
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148 | } |
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149 | |
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150 | function _mouseUp() |
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151 | { |
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152 | if ( _element ) |
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153 | { |
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154 | _configEvent(_element, 'onmousemove', _mouseMove, 'remove'); |
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155 | _configEvent(top.document, 'onmousemove', _mouseMove, 'remove'); |
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156 | |
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157 | _configEvent(_element, 'onmouseup', _mouseUp, 'remove'); |
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158 | _configEvent(top.document, 'onmouseup', _mouseUp, 'remove'); |
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159 | |
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160 | _element.mouseOffset = null; |
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161 | _mouseUpShadow(); |
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162 | } |
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163 | } |
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164 | |
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165 | function _mouseDownShadow(e) |
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166 | { |
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167 | try |
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168 | { |
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169 | if( arguments.length > 0 ) |
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170 | { |
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171 | var _el = ( e.target ) ? e.target : e.srcElement; |
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172 | var _id = (_el.id.substring(0, _el.id.indexOf("__draggable"))); |
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173 | |
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174 | _elementA = document.getElementById( _id + "__parent"); |
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175 | _elementB = _elementShadow( _id + "__parent"); |
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176 | |
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177 | _elementA.style.left = '-1500px'; |
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178 | _parent = _elementA.parentNode; |
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179 | |
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180 | var _B = _parent.appendChild(_elementB); |
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181 | |
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182 | _configEvent( _elementB, 'onmouseup', _mouseUpShadow); |
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183 | _configEvent( _elementB, 'onmousemove', _drag); |
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184 | } |
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185 | |
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186 | }catch(e){} |
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187 | } |
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188 | |
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189 | function _mouseUpShadow() |
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190 | { |
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191 | try |
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192 | { |
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193 | _elementA.style.top = _elementB.style.top; |
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194 | _elementA.style.left = _elementB.style.left; |
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195 | |
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196 | var _B = _parent.removeChild(_elementB); |
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197 | |
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198 | _elementA = null; |
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199 | _elementB = null; |
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200 | _element = null; |
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201 | } |
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202 | catch(e){} |
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203 | } |
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204 | |
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205 | function _drag_drop(){} |
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206 | |
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207 | _drag_drop.prototype.set = _load; |
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208 | window._drag_drop = _drag_drop; |
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209 | |
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210 | })(); |
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