  if(arguments.length == 0) { op = this.bgOpacity; } dojo.html.setOpacity(this.bg, op); try { this.bgOpacity = dojo.html.getOpacity(this.bg); } catch (e) { this.bgOpacity = op; } return this.bgOpacity; }, 
  if(arguments.length == 0) { op = this.bgOpacity; } dojo.html.setOpacity(this.bg, op); try { this.bgOpacity = dojo.html.getOpacity(this.bg); } catch (e) { this.bgOpacity = op; } return this.bgOpacity; }, 
		setBackgroundOpacity: function(/*Number*/ op) {			// summary			//	changes background opacity set by "bgOpacity" parameter			if(arguments.length == 0) { op = this.bgOpacity; }			dojo.html.setOpacity(this.bg, op);			try {				this.bgOpacity = dojo.html.getOpacity(this.bg);			} catch (e) {				this.bgOpacity = op;			}			return this.bgOpacity;	// Number: the opacity		},
6315	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/6315/2f1d2cb699c9d9329e8b782b0463156e211cb0f6/struts_dojo.js.uncompressed.js/buggy/src/main/resources/org/apache/struts2/static/dojo/struts_dojo.js.uncompressed.js