Are there any JS functions that activate JS when element is in view?

[612wharfavenue]

I want an element to respond onclick, but only when its in a certain part of the screen, like a 'active area'. Does anyone know of any built in functions or methods that can do this? The element is capable of being moved about the page, and i would like its onclick event only to be active when its entirely within the designated 'box', which is invisible.

[birbal]

i am not aware about any any built in mehtods but you can do something like this.you can create a function which will take the x and y co-ordinate of the movable elementcheck those co-ordinates against some predefined co-ordinate (criteria fixed by you) of that element where it iss clickableif criteria matches do some jobnow you can bound the function to any event eg. onclick int that element.