rem: this.removeChild(this.firstChild); 
add: if (this.firstChild) this.removeChild(this.firstChild); 
context: 	setText: function(text){		var tag = this.getTag();		if (['style', 'script'].contains(tag)){			if (Client.engine.ie){				if (tag == 'style') this.styleSheet.cssText = text;				else if (tag ==  'script') this.setProperty('text', text);				return this;			} else {				this.removeChild(this.firstChild);				return this.appendText(text);			}		}		this[$defined(this.innerText) ? 'innerText' : 'textContent'] = text;		return this;	},
meta: 6317	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/6317/52d1b611d6000a6b024544733aa5894e0329ffe8/Element.js/buggy/Native/Element.js