graphixtyle

I have charts that are being created by xml created by a php script that pulls information from a database and does various calculations to output a final value that is represented in the chart. All works fine besides one annoying thing. When there is no data available to calculate the value passed is blank (ie: empty, ) but the chart needle points to 100 or top of scale. I cannot enter 0 because there are possibilities in a true zero value being calculated. I need some way of getting the chart to display "Insufficient Data" or "Error" or the like. Is this possible? Thank you in advance for time.

I believe I have sorted out my own issue. I have made it so the php script omits the creation of the dial if the value is empty. if (!empty($myValue)) { } This obviously causes the flash file to say "Hey, your data is not right." and this then displays as "No data to display" which is fine. Much better than an incorrect value of 100% or 0%