Hi I am VERY new to java script and I am totally stuck try to get a program together,its for a holiday company, the task I have been set is as follows:

complete the coding according to these specifications

if the holiday maker is under 5 the user should be informed the holiday is free

if the holiday maker is aged 5 or over, but not over 15 the user should be told the price of the holiday in pounds

if the holiday maker is over 15, the user should be told the price of the holiday in pounds - this will be the advertised price.

the code I have is :

<HTML>
<HEAD>
<TITLE>TMA 02 Q4(iii)</TITLE>
<SCRIPT LANGUAGE = "JAVASCRIPT">

// A price calculation program for Mermaid Holidays

var initialPrice; // Advertised price of the holiday in pounds
var age; // Age in years of the holidaymaker

initialPrice = window.prompt('Please enter the advertised price of the holiday in pounds', '');
initialPrice = parseFloat(initialPrice);





</SCRIPT>

</HEAD>
<BODY>
</BODY>
</HTML>

Can anyone please help me to complete it and make sense of it all?

Thanks

K