<HTML> |
<HEAD><TITLE>JavaScript with Forms</TITLE> |
<SCRIPT LANGUAGE="JavaScript"> |
function compute() { |
if ( confirm("Is this what you want?") ) |
aForm.result.value = eval(aForm.expr.value); |
} |
</SCRIPT></HEAD> |
<BODY><FORM NAME="aForm"> Enter expression: |
<INPUT TYPE="text" NAME="expr" SIZE=15> |
<INPUT TYPE="button" VALUE="Compute!" |
onClick="compute()"> <BR> Result: |
<INPUT TYPE="text" NAME="result" SIZE=15> |
</FORM></BODY> |
</HTML> |