rem: return this.bgOpacity; 
add: return this.bgOpacity; 
context: 		setBackgroundOpacity: function(/*Number*/ op) {			// summary			//	changes background opacity set by "bgOpacity" parameter			if(arguments.length == 0) { op = this.bgOpacity; }			dojo.html.setOpacity(this.shared.bg, op);			try {				this.bgOpacity = dojo.html.getOpacity(this.shared.bg);			} catch (e) {				this.bgOpacity = op;			}			return this.bgOpacity;		},
meta: 4707	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/4707/50c3492c4c3c825dbd3401e134a19ed46799c456/Dialog.js/buggy/www/resources/dojo-ajax/src/widget/Dialog.js