MVC Upload did not work on a Modal form in IE7

[Samir]

Dear Support,

I have a requirement to have the MVC Upload extension on a modal form but when you view it in IE7, the upload button still interacting but does not get clicked.

I have attached the demo project.

Thanks,

Update: For IE7,  I just set the z-index to 10000 and it worked. The auto option only works in IE8 and IE9.

[Patrick]

add this in your CSS file and it works:

.t-upload-button input 
{
   z-index: 9999 !important;   
}

Lol, later I saw that you already found the answer...