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One can parameterize HTML using document.writeln()
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commands such as:
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document.writeln("str1" + JSvariable + "str2");
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Another way of achieving this is by directly embedding the variable into the HTML, requiring no <SCRIPT> tag and no document.write():
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<IMG WIDTH="&{JSvar1};" SRC="&{JSvar2};">
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where JSvar1 and JSvar2 are JavaScript variables
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Syntax is modeled after HTML special characters: for example, > produces a literal greater than sign (>)
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Such JavaScript entities can ONLY appear on the right-hand side of attribute value pairs
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Cannot appear in arbitrary HTML text such as titles
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The document.writeln approach has no such restriction!
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