kitchen-sink modals popup show only the first click

[tinnakorn-chotnog]

kitchen-sink/modals/popup
1.click popup button -> popup opened
2.click close button on the top right -> popup closed
3.click popup button -> popup opened a second and automatically closed (only overlay is showing)
4.click at overly -> overlay gone
5.click popup button -> nothing happened (the style=display:none)

** same problem for action button **

[kael777]

same here

[tinnakorn-chotnog]

I just download the fixed version and test it but the problem exists both on Firefox and Chrome, please verify again.