-var exclude = /z-?index|font-?weight|opacity|zoom|line-?height/i,
- // cache defaultView
- defaultView = document.defaultView || {},
+var rexclude = /z-?index|font-?weight|opacity|zoom|line-?height/i,
+ ralpha = /alpha\([^)]*\)/,
+ ropacity = /opacity=([^)]*)/,
+ rfloat = /float/i,
+ rdashAlpha = /-([a-z])/ig,
+ rupper = /([A-Z])/g,
+ rnumpx = /^-?\d+(?:px)?$/i,
+ rnum = /^-?\d/,
+
+ cssShow = { position: "absolute", visibility: "hidden", display:"block" },
+ cssWidth = [ "Left", "Right" ],
+ cssHeight = [ "Top", "Bottom" ],
+
+ // cache check for defaultView.getComputedStyle
+ getComputedStyle = document.defaultView && document.defaultView.getComputedStyle,