if ... else StatementThe if ... else statement provides a mechanism to execute statements under all conditions that do not match a preceding if or else if statements(s). Since it is a catch-all provision, it does not evaluate an expression.
<script language="JavaScript">
<!--
function checkOptions(selectedValue)
{
if (selectedValue == 1)
{
alert("You selected 1.");
}
else
{
alert("You didn't select 1.");
}
}
//-->
</script>