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<html><head><style> #myDIV { width: 300px; height: 300px; background: lightblue url('smiley.gif') no-repeat; color: white; overflow: auto;}</style></head><body><h1>Change background-attachment with JavaScript</h1><p>Click the radio buttons and scroll the DIV element to see the effect of the background-attachment property:</p><form name="myForm"> <input type="radio" name="myAtt" value="fixed" onclick="myFunction()" checked>fixed <input type="radio" name="myAtt" value="local" onclick="myFunction()">local</form><div id="myDIV"> <h1>Hello</h1> <h1>Hello</h1> <h1>Hello</h1> <h1>Hello</h1> <h1>Hello</h1> <h1>Hello</h1> <h1>Hello</h1> <h1>Hello</h1> <h1>Hello</h1> <h1>Hello</h1> <h1>Hello</h1> <h1>Hello</h1> <h1>Hello</h1> <h1>Hello</h1> <h1>Hello</h1> <h1>Hello</h1> <h1>Hello</h1> <h1>Hello</h1> <h1>Hello</h1> <h1>Hello</h1>