rem: Element.removeClassName(this.trElement, "breakpoint"); 
add: removeClassName(this.trElement, "breakpoint"); 
context:     onClick: function() {        if (this.trElement.isBreakpoint == undefined) {            this.trElement.isBreakpoint = true;            Element.addClassName(this.trElement, "breakpoint");        } else {            this.trElement.isBreakpoint = undefined;            Element.removeClassName(this.trElement, "breakpoint");        }    },
meta: 3175	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/3175/697a29d268d2448c4391184afe752f6497773118/selenium-testrunner.js/clean/code/javascript/core/scripts/selenium-testrunner.js