whole_func_string: function(){
  		if(this.ieVersion !== undefined) return this.ieVersion;
  		var ua=this.headers['user-agent'],m;
  		if(!ua || !(m=ua.match(/MSIE ([\d\.]+)/i))) return this.ieVersion=false;
  		return this.ieVersion=m[1];
  	}
func_code_string: function(){
  		if(this.ieVersion !== undefined) return this.ieVersion;
  		var ua=this.headers['user-agent'],m;
  		if(!ua || !(m=ua.match(/MSIE ([\d\.]+)/i))) return this.ieVersion=false;
  		return this.ieVersion=m[1];
  	}
func_documentation_string: TODO lang