Steps to Reproduce

http://zkfiddle.org/sample/3rsa4vr/3-Inconsistent-behavior-in-disabled-input-based-controls
Run fiddle
Click / right click on disabled components. (active components are for comparison only)

Chrome Results

textbox left click: left click event triggered
textbox right click: right click event triggered
decimalbox left click: left click event triggered
decimalbox right click: right click event triggered
checkbox left click on input element: no event
checkbox right click on input element: no event
checkbox left click between input element and border: left click event triggered
checkbox right click between input element and border: right click event triggered
button left click: no event
button right click: no event

Firefox Results

textbox left click: no event
textbox right click: no event, context menu opened
decimalbox left click: no event
decimalbox right click: no event, context menu opened
checkbox left click on input element: no event
checkbox right click on input element: no event, context menu opened
checkbox left click between input element and border: left click event triggered
checkbox right click between input element and border: right click event triggered
button left click: no event
button right click: no event, context menu opened

IE Results

textbox left click: left click event triggered
textbox right click: right click event triggered
decimalbox left click: left click event triggered
decimalbox right click: right click event triggered
checkbox left click on input element: no event
checkbox right click on input element: right click event triggered
checkbox left click between input element and border: no event
checkbox right click between input element and border: no event, context menu opened
button left click: no event
button right click: right click event triggered

Expected Result

More consistent behavior between input elements / more consistent behavior between browsers

Debug Info

In the "no event" cases, it seem that the browser itself suppresses click events on disabled elements