June 10th, 1999, 08:27 AM
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URLI've used this script, to do a similar calculation, and I think it'll do for you.
<HTML>
<HEAD>
<SCRIPT LANGUAGE="JavaScript">
<!--hide code from old browsers
function get_rate ()
{
if (document.rates.from.options[document.rates.from.selectedIndex].value !="none")
{
if (document.rates.to.options[document.rates.to.selectedIndex].value !="none")
{
var rate_from = eval(document.rates.from.options[document.rates.from.selectedIndex].value);
var rate_to = eval(document.rates.to.options[document.rates.to.selectedIndex].value);
var rate = eval(rate_from + rate_to);
alert("Call costs $"+rate+" per minute");
}
else
{
alert("Please select countries.");
}
}
else
{
alert("Please select countries.");
}
}
//end hiding-->
</SCRIPT>
</HEAD>
<BODY>
<FORM NAME="rates">
<SELECT NAME="from" SIZE="1">
<OPTION VALUE="none">calling from
<OPTION VALUE="0.10">country 1
<OPTION VALUE="0.20">country 2
<OPTION VALUE="0.30">country 3
<OPTION VALUE="0.40">country 4
</SELECT>
<SELECT NAME="to" SIZE="1">
<OPTION VALUE="none">calling to
<OPTION VALUE="0.10">country 1
<OPTION VALUE="0.20">country 2
<OPTION VALUE="0.30">country 3
<OPTION VALUE="0.40">country 4
</SELECT>
<BR>
<INPUT TYPE="button" VALUE="calculate rate" onClick="get_rate()">
</FORM>
</BODY>
</HTML>
Hope it helps.
Christine.
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