Net Imaging. JavaScript.

NetImaging supports several functions available in JavaScript.
To call a function in JavaScript do the following:

Specify the applet attribute "name", for example

    <applet name="imaging" archive="imaging.jar" ... >
        ... parameters ...
    </applet>

Use this name to access the applet as follows:

    <script language="javascript">
        var imaging = document.applets['imaging'];
        imaging.someFunc(); // call someFunc()
    </script>

Here is the list of available functions:

`getImageWidth()`	Returns the current image width.
`getImageHeight()`	Returns the current image height.
`setSelect(spec)`	Displays the selecion box. The format of the "spec" parameter corresponds to the applet parameter select, for example: `setSelect("10,10,400,300");` The specified selector is set regardless of the current proportion constraint. But the selector will be adjusted if the user manipulates it with the mouse.
`getSelect()`	Returns the current selector state. The format of the returned string is: `"x,y,width,height"`. You can parse the returned string with the method `split()`. If there is no selection the empty string is returned.
`setProportion(spec)`	Specifies the proportion constraint. The format of the "spec" parameter corresponds to the applet's parameter proportion, for example: `setProportion("4,3");` This function removes the current selector (if it exists).
`isChanged()`	Returns `true` if the user has changed the original image, and `false` otherwise.
`upload(saveURL, jpeg_quality)`	Triggers the upload (save) process (i.e. it acts similar to the "Save" button). Note: You can hide the regular "Save" button from the top panel using the applet parameter visible_buttons.
`addUploadField(name, value)`	Appends a user defined field in the upload (save) request. This function should be invoked before the function `upload()`.