Js achieved with Beijing webgis, drag zoom function with distance.

mapbjyuan\img\blank.gif
.........\...\cloud-popup-relative.png
.........\...\drag-rectangle-off.png
.........\...\drag-rectangle-on.png
.........\...\east-mini.png
.........\...\layer-switcher-maximize.png
.........\...\layer-switcher-minimize.png
.........\...\marker-blue.png
.........\...\marker-gold.png
.........\...\marker-green.png
.........\...\marker.png
.........\...\measuring-stick-off.png
.........\...\measuring-stick-on.png
.........\...\north-mini.png
.........\...\panning-hand-off.png
.........\...\panning-hand-on.png
.........\...\slider.png
.........\...\south-mini.png
.........\...\west-mini.png
.........\...\zoom-minus-mini.png
.........\...\zoom-plus-mini.png
.........\...\zoom-world-mini.png
.........\...\zoombar.png
.........\lib\Firebug\errorIcon.png
.........\...\.......\firebug.css
.........\...\.......\firebug.html
.........\...\.......\firebug.js
.........\...\.......\firebugx.js
.........\...\.......\infoIcon.png
.........\...\.......\license.txt
.........\...\.......\readme.txt
.........\...\.......\warningIcon.png
.........\...\Gears\gears_init.js
.........\...\OpenLayers\Ajax.js
.........\...\..........\BaseTypes\Bounds.js
.........\...\..........\.........\Class.js
.........\...\..........\.........\Element.js
.........\...\..........\.........\LonLat.js
.........\...\..........\.........\Pixel.js
.........\...\..........\.........\Size.js
.........\...\..........\BaseTypes.js
.........\...\..........\Console.js
.........\...\..........\...trol\ArgParser.js
.........\...\..........\.......\Attribution.js
.........\...\..........\.......\Button.js
.........\...\..........\.......\DragFeature.js
.........\...\..........\.......\DragPan.js
.........\...\..........\.......\DrawFeature.js
.........\...\..........\.......\EditingToolbar.js
.........\...\..........\.......\KeyboardDefaults.js
.........\...\..........\.......\LayerSwitcher.js
.........\...\..........\.......\Measure.js
.........\...\..........\.......\ModifyFeature.js
.........\...\..........\.......\MouseDefaults.js
.........\...\..........\.......\MousePosition.js
.........\...\..........\.......\MouseToolbar.js
.........\...\..........\.......\Navigation.js
.........\...\..........\.......\NavigationHistory.js
.........\...\..........\.......\NavToolbar.js
.........\...\..........\.......\OverviewMap.js
.........\...\..........\.......\Pan.js
.........\...\..........\.......\Panel.js
.........\...\..........\.......\PanPanel.js
.........\...\..........\.......\PanZoom.js
.........\...\..........\.......\PanZoomBar.js
.........\...\..........\.......\Permalink.js
.........\...\..........\.......\Scale.js
.........\...\..........\.......\ScaleLine.js
.........\...\..........\.......\SelectFeature.js
.........\...\..........\.......\ZoomBox.js
.........\...\..........\.......\ZoomIn.js
.........\...\..........\.......\ZoomOut.js
.........\...\..........\.......\ZoomPanel.js
.........\...\..........\.......\ZoomToMaxExtent.js
.........\...\..........\Control.js
.........\...\..........\Events.js
.........\...\..........\Feature\Vector.js
.........\...\..........\.......\WFS.js
.........\...\..........\Feature.js
.........\...\..........\.ilter\Comparison.js
.........\...\..........\......\FeatureId.js
.........\...\..........\......\Logical.js
.........\...\..........\......\Spatial.js
.........\...\..........\Filter.js
.........\...\..........\.ormat\Filter\v1.js
.........\...\..........\......\......\v1_0_0.js
.........\...\..........\......\Filter.js
.........\...\..........\......\GeoJSON.js
.........\...\..........\......\GeoRSS.js
.........\...\..........\......\.ML\Base.js
.........\...\..........\......\...\v2.js
.........\...\..........\......\...\v3.js
.........\...\..........\......\GML.js
.........\...\..........\......\GPX.js
.........\...\..........\......\JSON.js
.........\...\..........\......\KML.js
.........\...\..........\......\OSM.js
.........\...\..........\......\SLD\v1.js
.........\...\..........\......\...\v1_0_0.js
.........\...\..........\......\SLD.js

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