Position : fixed and IE6
This is a small CSS code if you have to fix problem with position:fixed on IE6.
Fix element on the TOP :
top: expression(this.offsetHeight + document.documentElement.scrollTop - this.offsetHeight +'px');
Fix element on the BOTTOM :
top : expression(-this.offsetHeight + document.documentElement.clientHeight + document.documentElement.scrollTop + 'px');
Don’t forget to add a blank image background to fix element vibration when you scroll page (Download blank image) :
html{
background:url(blank_image.gif) fixed;
}