.ext-el-mask { z-index: 100; position: absolute; top: 0; left: 0; -moz-opacity: .5; opacity: .50; filter: alpha(opacity=50); background-color: #000; width: 100%; height: 100%; zoom: 1; }

.ext-el-mask2 { z-index: 100; position: absolute; top: 0; left: 0; -moz-opacity: .5; opacity: .50; filter: alpha(opacity=50); background-color: #CCC; width: 100%; height: 100%; zoom: 1; }