PHP script for translation quote calculation

I currently have an html form on my translation website which captures client details for the purpose of a translation quote. I need a PHP script (or Java perhaps) for the html form which retrieves values and published as a total fee. The html form captures the following input: check document type check delivery time input number of words select currency choose source and target languages click get quote The PHP script needs to calculate: number of words x currency selected (amount coded 1 word = 0.008 Pounds or Euro/USD equivalent, dependent on currency selected) total has this added check delivery time - normal (0%) express (+20%) total has this added check document type - general (0%) others (+20%) output total of quote details - quote amount number of words delivery time document type languages I hope this is ok and clear enough to understand best wishes Paul