Rails spinoffs - Mar 2007 - Drag and Drop problem

Hi,

I have made an object in JavaScript that uses the scriptolicious
library to help me with drag and drop and various other things.

The class has a method to make itself draggable. I have added this
method at the bottom so you can see it, It''s mostly copied from an
example I found on the scriptolicious documentation (i think).

This works fine, the problem is when I have add a second instance of
the same class, in a different variable etc. it stops working on the
first one and only works in the last added div.

I figure it must be overriding some of the settings somewhere and
therefore only using them in the last added element.

However, I cant see what would make this happen. Please give me and
suggestions that you have or if I am totally off track, please point
me in the right direction.

I have a fair sum of programming experience but JavaScript confuses me
somewhat.

Dougal

--------------------------------------------

	this.makeDraggable = function(){

		qb.log.add("Adding Drag");

		new Draggable(this.divId,{
			snap: function(x,y,draggable) {
	  			function constrain(n, lower, upper) {
					if (n > upper) return upper;
					else if (n < lower) return lower;
					else return n;
	  			}
	  			element_dimensions = Element.getDimensions(draggable.element);
	  			parent_dimensions Element.getDimensions(draggable.element.parentNode);
	  			return[
				constrain(x, 11, parent_dimensions.width -
element_dimensions.width + 9),
				constrain(y, 11, parent_dimensions.height -
element_dimensions.height + 9)];
			},

			scroll:window,
	  		handle: "table" + this.id + "hand",
			zindex:9,
			revert:false
	  	});

	}


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