.p-fixed-0-0
{
   top: 0;
   left: 0;
   position: fixed;
   -position: absolute;
   -left: expression(eval(getParam('scrollLeft')) + 'px');
   -top:  expression(eval(getParam('scrollTop')) + 'px');
}
.p-fixed-50pr-50pr
{
   top: 50%;
   left: 50%;
   position: fixed;
   -position: absolute;
   -left: expression(eval(getParam('scrollLeft') + getParam('clientWidth')*0.5) + 'px');
   -top:  expression(eval(getParam('scrollTop') + getParam('clientHeight')*0.5) + 'px');
}
.p-fixed-100pr-100pr
{
   top: 100%;
   left: 100%;
   position: fixed;
   -position: absolute;
   -left: expression(eval(getParam('scrollLeft') + getParam('clientWidth')*1) + 'px');
   -top:  expression(eval(getParam('scrollTop') + getParam('clientHeight')*1) + 'px');
}