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JavaScript i HTML serie, Planche nr. 16 |
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Event handler i praksis |
Eksempel
<HEAD>
<SCRIPT>
<!--- Hide script from old browsers
function compute(f) {
if (confirm("Are you sure?"))
f.result.value = eval(f.expr.value)
else
alert("Please come back again.")
}
// end hiding from old browsers -->
</SCRIPT>
</HEAD>
<BODY>
<FORM>
Enter an expression:
<INPUT TYPE="text" NAME="expr" SIZE=15 >
<INPUT TYPE="button" VALUE="Calculate" onClick="compute(this.form)">
<BR>
Result:
<INPUT TYPE="text" NAME="result" SIZE=15 >
</FORM>
</BODY>