Patent ID: 8042561

Claim:
A curtain comprising: a flexible sheet having an upper edge, a lower edge, a first side edge and a second side edge, the flexible sheet having a front surface and a rear surface; one or more upper edge fastener portions disposed proximate to the upper edge for attaching the upper edge to an external surface; and reversible retaining means for retaining the lower edge at a plurality of locations on the flexible sheet above the lower edge, wherein the reversible retaining means comprise fastener portions extending along the first side edge, the second side edge, and a central portion on the flexible sheet, wherein the fastener portions comprise a lower fastener portion proximate to the lower edge of the sheet and a separate upper fastener portion extending from a top area of the lower fastener portion vertically along the sheet upward to a central area on the sheet; wherein the lower edge of the sheet is folded upwardly and capable of being retained at a multitude of positions by the reversible retaining means.