add: return !!val; 
context:         this.style = function(name, htmlnode, xhtmlnode) {            var val = htmlnode.style.cssText;            if (val) {                var styles = val.split(/; */);                for (var i = styles.length; i >= 0; i--) if (styles[i]) {                    var parts = /^([^:]+): *(.*)$/.exec(styles[i]);                    var name = parts[1].toLowerCase();                    if (validation.styleWhitelist[name]) {                        styles[i] = name+': '+parts[2];                    } else {                        styles.splice(i,1); // delete                    }                }                if (styles[styles.length-1]) styles.push('');                val = styles.join('; ').strip();            }            if (val) xhtmlnode.setAttribute('style', val);        };
meta: 2380	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/2380/a66c86479bb56fb3ba0bdc9c529feb15bcc74096/kupucontentfilters.js/clean/kupu/common/kupucontentfilters.js