Snap the object - very-2 urgent

Hi guyes.

I am making one circuit which has the features of pin point to show when a pin of one object comes near to another.
Its working to show pin - point but, does not remove that once one object goes far to another.
You can look it working on dragging one object from the attached file(swf). There is some pin attached to left and right side which shows the pin-point as discussed when a pin comes near to another object’s pin. But, it does not remove when it goes far away.

Hope one can help me fix this issue. I have attached the source file here… It has made me mad :frowning: