javascript not working in embed svg file -

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i start learning svg. got example code manipulating svg documents using ecmascript (javascript) , dom. change little:

<!doctype html> <html> <body> <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="300" height="300">   <script type="text/ecmascript">   <![cdata[     function changerectcolor(evt) {       var red = math.round(math.random() * 255);       evt.target.setattributens(null,"fill","rgb("+ red +","+ red+","+red+")");     }   ]]>   </script>   <g id="firstgroup">     <rect id="mybluerect" width="100" height="50" x="40" y="20" fill="blue" onclick="changerectcolor(evt)"/>     <text x="40" y="100">click on rectangle change it's color.</text>   </g> </svg> </body> </html>

it works fine. move separated svg file, js code stop working:

<!doctype html> <html> <body> <object type="image/svg+xml" data="exampl3a.svg" />      <script type="text/ecmascript">   <![cdata[     function changerectcolor(evt) {       var red = math.round(math.random() * 255);       evt.target.setattributens(null,"fill","rgb("+ red +","+ red+","+red+")");     }   ]]>   </script> </body> </html>

svg file: exampl3a.svg

<?xml version="1.0" encoding="utf-8" standalone="no"?> <!doctype svg public "-//w3c//dtd svg 1.0//en" "http://www.w3.org/tr/2001/rec-svg-20010904/dtd/svg10.dtd"> <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="300" height="300">   <g id="firstgroup">     <rect id="mybluerect" width="100" height="50" x="40" y="20" fill="blue" onclick="changerectcolor(evt)"/>     <text x="40" y="100">click on rectangle change it's color.</text>   </g> </svg>

what should do?

thanks wes

if put svg different file, in document, , you'll need bind document, using getsvgdocument. , yes, still not work in chrome local files (only website, or unless chrome run corresponding command-line switch).

svg:

<?xml version="1.0" encoding="utf-8" standalone="no"?> <!doctype svg public "-//w3c//dtd svg 1.0//en" "http://www.w3.org/tr/2001/rec-svg-20010904/dtd/svg10.dtd"> <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="300" height="300">   <g id="firstgroup">     <rect id="mybluerect" width="100" height="50" x="40" y="20" fill="blue" />     <text x="40" y="100">click on rectangle change it's color.</text>   </g> </svg>

html

<!doctype html> <html> <body> <object id='mysvg' type="image/svg+xml" data="example3a.svg" /> <script type="text/ecmascript">     function changerectcolor(evt) {         var red = math.round(math.random() * 255);         evt.target.setattributens(null,"fill","rgb("+ red +","+ red+","+red+")");     }      var obj = document.getelementbyid('mysvg');     obj.addeventlistener('load', function() {         var svgdoc= obj.getsvgdocument();         var elem = svgdoc.getelementbyid("mybluerect");         elem.addeventlistener('click', changerectcolor);     }); </script> </body> </html>

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