.popup_div 	{ z-index:100; border:none; width:385px; left: 10%; }
.mask_div 	{ z-index:90; text-align: left; position: absolute; top: 0px; background:url(/includes/popup/mask.png); behavior: url(/includes/_png.htc); }
.mask_clear { z-index:90; text-align: left; position: absolute;	top: 0px; background:url(/includes/popup/mask_clear.png); behavior: url(/includes/_png.htc); }