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<HTML><HEAD><TITLE>JavaScript with Forms</TITLE>
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<SCRIPT LANGUAGE="JavaScript">
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<!-- a comment to hide JavaScript from old browsers
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function compute(form) {
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if (confirm("Is this what you want?"))
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form.result.value = eval(form.expr.value);
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else alert("Enter a new expression then!");
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}
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// end script hiding -->
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</SCRIPT></HEAD>
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<BODY><FORM>
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Enter an expression:
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<INPUT TYPE="text" NAME="expr" SIZE=15>
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<INPUT TYPE="button" VALUE="DoIt!" ONCLICK="compute(this.form)">
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<BR>Result: <INPUT TYPE="text" NAME="result" SIZE=15><BR>
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</FORM></BODY></HTML>
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