var arr_introduce=[
	['5','About us','1', '/files/introduce/2009-11/01_about_us(1).jpg'],
			['3','DDA Outsourcing','1', '/files/introduce/2009-11/02_dda_outsourcing(2).jpg'],
			['4','BIM & DDA Process','1', '/files/introduce/2009-11/03_bimdiagram(1).jpg'], 
				];