rem: var enable = (gDialog.customSizeRadio.checked); 
add: var enable = (gDialog.customSizeRadio.selected); 
context: function doDimensionEnabling(){  // Enabled only if "Custom" is checked  var enable = (gDialog.customSizeRadio.checked);  // BUG 74145: After input field is disabled,  //   setting it enabled causes blinking caret to appear  //   even though focus isn't set to it.  SetElementEnabledById( "heightInput", enable );  SetElementEnabledById( "heightLabel", enable );  SetElementEnabledById( "heightUnitsMenulist", enable );  SetElementEnabledById( "widthInput", enable );  SetElementEnabledById( "widthLabel", enable);  SetElementEnabledById( "widthUnitsMenulist", enable );  var constrainEnable = enable         && ( gDialog.widthUnitsMenulist.selectedIndex == 0 )         && ( gDialog.heightUnitsMenulist.selectedIndex == 0 );  SetElementEnabledById( "constrainCheckbox", constrainEnable );}
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/71e1ffab7041d706ecdcfdbf01b42232fdf44f36/EdImageProps.js/clean/editor/ui/dialogs/content/EdImageProps.js