char watchstring[16];
char watchbuffer[3];

	memset(watchstring, 0, 16);		 //empty array
	strcat(watchstring,"selected:");	//copy string-text to watchstring
	utoa(menu_current,watchbuffer,10);	//convert integer to decimal(10) string and put it in buffer
	strcat(watchstring, watchbuffer);
	u8g_DrawStr(&LCD, 0, 80, watchstring); //ouput looks like this: selected:15