var changeInfoNum;
function changeInfo(no)
{	
	//1-4分别为领导讲话、政务新闻，领导分工、重要文件
	   if(no == 1)
		{		    
			document.getElementById("A_T_1").background="pic/pywh_2.jpg";
			document.getElementById("A_T_2").background="pic/lygl_1.jpg";
			document.getElementById("A_T_3").background="pic/zxdy_1.jpg";
			document.getElementById("A_T_4").background="pic/bgyl_1.jpg";
			
			document.getElementById("A_1").style.display = "";
			document.getElementById("A_2").style.display = "none";
			document.getElementById("A_3").style.display = "none";
			document.getElementById("A_4").style.display = "none";
		}
	   if(no == 2)
		{		    
			document.getElementById("A_T_1").background="pic/pywh_1.jpg";
			document.getElementById("A_T_2").background="pic/lygl_2.jpg";
			document.getElementById("A_T_3").background="pic/zxdy_1.jpg";
			document.getElementById("A_T_4").background="pic/bgyl_1.jpg";
			
			document.getElementById("A_1").style.display = "none";
			document.getElementById("A_2").style.display = "";
			document.getElementById("A_3").style.display = "none";
			document.getElementById("A_4").style.display = "none";
		}
	   if(no == 3)
		{		    
			document.getElementById("A_T_1").background="pic/pywh_1.jpg";
			document.getElementById("A_T_2").background="pic/lygl_1.jpg";
			document.getElementById("A_T_3").background="pic/zxdy_2.jpg";
			document.getElementById("A_T_4").background="pic/bgyl_1.jpg";
			
			document.getElementById("A_1").style.display = "none";
			document.getElementById("A_2").style.display = "none";
			document.getElementById("A_3").style.display = "";
			document.getElementById("A_4").style.display = "none";
		}
		if(no == 4)
			{		    
			document.getElementById("A_T_1").background="pic/pywh_1.jpg";
			document.getElementById("A_T_2").background="pic/lygl_1.jpg";
			document.getElementById("A_T_3").background="pic/zxdy_1.jpg";
			document.getElementById("A_T_4").background="pic/bgyl_2.jpg";
			
			document.getElementById("A_1").style.display = "none";
			document.getElementById("A_2").style.display = "none";
			document.getElementById("A_3").style.display = "none";
			document.getElementById("A_4").style.display = "";
			}
}
function setDelayTime(no,Dtime){
	changeInfoNum=setTimeout("changeInfo("+no+")",Dtime);
}
function setClearnTime(){
	clearTimeout(changeInfoNum);
}