.zp-backgroundPopup{  
display:none;  
position:fixed;  
_position:absolute; /* hack for internet explorer 6*/  
z-index:1;  
}  
.zp-popupContact{  
display:none;  
position:fixed;  
_position:absolute; /* hack for internet explorer 6*/  
z-index:2;
}  

.zp-popupContactClose{  
position:absolute;  
display:block;  
}