fix xinha_init code in examples

[akaEdge]

Please fix the window.onload = xinha_init; line in the example files to be window.onload = xinha_init();

I have change the Newbie Guide to reflect this change - and there is a post about why it should be changed in the Newbie Guide thread

[gogo]

This is incorrect code, window.onload = xinha_init(); assigns the result of xinha_init() to be window.onload, where window.onload = xinha_init; assigns the function to be window.onload, which is what is required. Closing invalid.