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One can define a string of JavaScript to be compiled as a function with syntax
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Target = new Function( [arg1,...argn], functionBody)
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where the optional arg1,...argn are arguments for formal function defined in functionBody
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Target is either the name of a variable or a property of an existing object or an event handler such as window.onerror
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var setBGcolor = new Function("document.bgColor='antiquewhite'");
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so you can now execute setBGcolor() where the function can be changed at any time with another setBGcolor = new Function("document.bgColor='pink'");
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One can define dynamic event handlers which as described MUST be lower case and MUST have no arguments
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window.onfocus = setBGcolor;
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Note like eval, functionBody can be JavaScript constructed dynamically as in
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var dynamic = 'bgcolor';
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Function("document." + dynamic + "='antiquewhite'");
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Secs 96.4
