Unnamed

     onmousedown="setPosition(evt, true)"     onmouseup="setPosition(evt, false)"     onmousemove="moveViewPort(evt)"     onload="init(evt)">var track_mouse_position = false;var original_mouse_position = new Array();var SVGRoot;function init(evt) {  SVGRoot = evt.target.ownerDocument.documentElement;}function setPosition(evt, active) {  track_mouse_position = active;  if (track_mouse_position) {    original_mouse_position['x'] = evt.clientX;    original_mouse_position['y'] = evt.clientY;    SVGRoot.cursor = 'move';  } else {    original_mouse_position = new Array();    SVGRoot.cursor = '';  }}function moveViewPort(evt) {  if (track_mouse_position) {    viewBox = SVGRoot.getAttribute('viewBox');    var viewVals = viewBox.split(' ');    viewVals[0] = original_mouse_position['x'] - evt.clientX;    viewVals[1] = original_mouse_position['y'] - evt.clientY;    SVGRoot.setAttribute('viewBox', viewVals.join(' '));  }}