<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"> <head> <title>Prototype Console</title> <script src="../dist/prototype.js" type="text/javascript"></script> <script type="text/javascript"> function test() { var out = $('out'); try { input = $F('input'); out.innerHTML += input.escapeHTML() + '<br />'; value = eval(input); out.innerHTML += '=> ' + value.toString().escapeHTML() + '<br />'; } catch (e) { out.innerHTML += 'Error: ' + e.toString().escapeHTML() + '<br />'; } $('input').value = ''; } </script> </head> <body> <form onsubmit="test(); return false"> <input type="text" size="60" id="input" /> <input type="submit" value="Execute" /> </form> <div id="test"></div> <div id="out"></div> </body> </html>