  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/2007/6315/65ae7e8768a77997b7894e274bc242069a1cb027/struts_dojo.js.uncompressed.js/clean/src/main/resources/org/apache/struts2/static/dojo/struts_dojo.js.uncompressed.js