hello

i do artwork with physical computing using a web browser and (internet explorer) based javascript to drive serial ports, midi ports, and flash animaitions. (http://www.ifam.net/mikon/)

is it possible to have browser based javascript get the grayscale area within a portion of a processing applet window?  ie say i want to grab the greyscale value with four 2d coordinates in the applet window, is there a way to get these variables from javascript?

what i would like to do is something like this with browser based javascrip. i don't know whether processing has javascript methods accessible from a browser so i made up a couple for the sake of this illustration:


//"processingwindow"= processing applet object

//"getgreayvalueof(20, 20, 40, 40) would be a javascript
//method to get the

//greayscale values of the area in the processing applet

//window bounded by 20x and 20y units on the top left

//cornerof the field and 20x and 40y unites in the lower

//bottom corner of the applet.


function getgreayscale_values()


{
var grayscale= new Number():
processingwindow.getgreayvalueof(20, 20, 40, 40);
alert(grayscale);

}

so in this example the function would bring up an alert window with the grayscale average within the space specified in the (fictional) getgreayvalueof() method
thanks for whatever pointers anyone may have