Localization :: Detecting The Language In A String?

I recently started using fusioncharts (which is a great charting tool btw) but I releaized that although it renders Right to Left languages correctly, it does not display them from Right to Left, so if I have "Sales Report" in Arabic, it will be displayed "Report Sales" in the chart.

I dont have a problem with this with static text because I can reverse it before I send it to the chart, but with dynamic text that is entered by the user it is a challenge, because the user may enter the details in English or in Arabic, or in both.

So if I can define the character code used in the sentence then my problem will be solved, and the first thing that came to my mind in order to do this is:

- Take one letter from each word in the string and compare it with the Arabic alphabet (instr function).

- If the function returns true then the letter will be arabic and therefore the whole word will be arabic, I'll store this word in a new string

- If the next word is also Arabic I'll add it to the new string else I will skip it and start a new string for the next words to come.

- After I finish searching the string I will reverse the words in the new string and replace them with their parts in the old string then send them to the chart.