Found a typo

It shouldn't say "gackgroundPosition", right?

Author: Alexander Skafte

syntax/javascript.vim

@@ -175,7 +175,7 @@ if exists("javascript_enable_domhtmlcss")
     syntax keyword jsCssStyles      contained border borderBottom borderLeft borderRight borderTop borderBottomColor borderLeftColor borderTopColor borderBottomStyle borderLeftStyle borderRightStyle borderTopStyle borderBottomWidth borderLeftWidth borderRightWidth borderTopWidth borderColor borderStyle borderWidth borderCollapse borderSpacing captionSide emptyCells tableLayout
     syntax keyword jsCssStyles      contained margin marginBottom marginLeft marginRight marginTop outline outlineColor outlineStyle outlineWidth padding paddingBottom paddingLeft paddingRight paddingTop
     syntax keyword jsCssStyles      contained listStyle listStyleImage listStylePosition listStyleType
-    syntax keyword jsCssStyles      contained background backgroundAttachment backgroundColor backgroundImage gackgroundPosition backgroundPositionX backgroundPositionY backgroundRepeat
+    syntax keyword jsCssStyles      contained background backgroundAttachment backgroundColor backgroundImage backgroundPosition backgroundPositionX backgroundPositionY backgroundRepeat
     syntax keyword jsCssStyles      contained clear clip clipBottom clipLeft clipRight clipTop content counterIncrement counterReset cssFloat cursor direction display filter layoutGrid layoutGridChar layoutGridLine layoutGridMode layoutGridType
     syntax keyword jsCssStyles      contained marks maxHeight maxWidth minHeight minWidth opacity MozOpacity overflow overflowX overflowY verticalAlign visibility zoom cssText
     syntax keyword jsCssStyles      contained scrollbar3dLightColor scrollbarArrowColor scrollbarBaseColor scrollbarDarkShadowColor scrollbarFaceColor scrollbarHighlightColor scrollbarShadowColor scrollbarTrackColor