function trees(obj)
{	
	switch(obj)
	{
		case "SY3":
			document.getElementById("SY3").src="images/SY_03_1.gif";
			document.getElementById("nav_1").src="images/SY_04.gif";
			document.getElementById("SY5").src="images/SY_05.gif";
			document.getElementById("SY6").src="images/SY_06.gif";
			document.getElementById("SY7").src="images/SY_07.gif";
			document.getElementById("SY8").src="images/SY_08.gif";
			document.getElementById("SY9").src="images/SY_09.gif";
			document.getElementById("SY10").src="images/SY_10.gif";
			document.getElementById("SY11").src="images/SY_11.gif";
			document.getElementById("SY12").src="images/SY_12.gif";
			break;
		case "SY4":
			document.getElementById("SY3").src="images/SY_03.gif";
			document.getElementById("SY4").src="images/SY_04_1.gif";
			document.getElementById("SY5").src="images/SY_05.gif";
			document.getElementById("SY6").src="images/SY_06.gif";
			document.getElementById("SY7").src="images/SY_07.gif";
			document.getElementById("SY8").src="images/SY_08.gif";
			document.getElementById("SY9").src="images/SY_09.gif";
			document.getElementById("SY10").src="images/SY_10.gif";
			document.getElementById("SY11").src="images/SY_11.gif";
			document.getElementById("SY12").src="images/SY_12.gif";
			break;
		case "SY5":
			document.getElementById("SY3").src="images/SY_03.gif";
			document.getElementById("SY4").src="images/SY_04.gif";
			document.getElementById("SY5").src="images/SY_05_1.gif";
			document.getElementById("SY6").src="images/SY_06.gif";
			document.getElementById("SY7").src="images/SY_07.gif";
			document.getElementById("SY8").src="images/SY_08.gif";
			document.getElementById("SY9").src="images/SY_09.gif";
			document.getElementById("SY10").src="images/SY_10.gif";
			document.getElementById("SY11").src="images/SY_11.gif";
			document.getElementById("SY12").src="images/SY_12.gif";
			break;
		case "SY6":
			document.getElementById("SY3").src="images/SY_03.gif";
			document.getElementById("SY4").src="images/SY_04.gif";
			document.getElementById("SY5").src="images/SY_05.gif";
			document.getElementById("SY6").src="images/SY_06_1.gif";
			document.getElementById("SY7").src="images/SY_07.gif";
			document.getElementById("SY8").src="images/SY_08.gif";
			document.getElementById("SY9").src="images/SY_09.gif";
			document.getElementById("SY10").src="images/SY_10.gif";
			document.getElementById("SY11").src="images/SY_11.gif";
			document.getElementById("SY12").src="images/SY_12.gif";
			break;
		case "SY7":
			document.getElementById("SY3").src="images/SY_03.gif";
			document.getElementById("SY4").src="images/SY_04.gif";
			document.getElementById("SY5").src="images/SY_05.gif";
			document.getElementById("SY6").src="images/SY_06.gif";
			document.getElementById("SY7").src="images/SY_07_1.gif";
			document.getElementById("SY8").src="images/SY_08.gif";
			document.getElementById("SY9").src="images/SY_09.gif";
			document.getElementById("SY10").src="images/SY_10.gif";
			document.getElementById("SY11").src="images/SY_11.gif";
			document.getElementById("SY12").src="images/SY_12.gif";
			break;
		case "SY8":
			document.getElementById("SY3").src="images/SY_03.gif";
			document.getElementById("SY4").src="images/SY_04.gif";
			document.getElementById("SY5").src="images/SY_05.gif";
			document.getElementById("SY6").src="images/SY_06.gif";
			document.getElementById("SY7").src="images/SY_07.gif";
			document.getElementById("SY8").src="images/SY_08_1.gif";
			document.getElementById("SY9").src="images/SY_09.gif";
			document.getElementById("SY10").src="images/SY_10.gif";
			document.getElementById("SY11").src="images/SY_11.gif";
			document.getElementById("SY12").src="images/SY_12.gif";
			break;
		case "SY9":
			document.getElementById("SY3").src="images/SY_03.gif";
			document.getElementById("SY4").src="images/SY_04.gif";
			document.getElementById("SY5").src="images/SY_05.gif";
			document.getElementById("SY6").src="images/SY_06.gif";
			document.getElementById("SY7").src="images/SY_07.gif";
			document.getElementById("SY8").src="images/SY_08.gif";
			document.getElementById("SY9").src="images/SY_09_1.gif";
			document.getElementById("SY10").src="images/SY_10.gif";
			document.getElementById("SY11").src="images/SY_11.gif";
			document.getElementById("SY12").src="images/SY_12.gif";
			break;
		case "SY10":
			document.getElementById("SY3").src="images/SY_03.gif";
			document.getElementById("SY4").src="images/SY_04.gif";
			document.getElementById("SY5").src="images/SY_05.gif";
			document.getElementById("SY6").src="images/SY_06.gif";
			document.getElementById("SY7").src="images/SY_07.gif";
			document.getElementById("SY8").src="images/SY_08.gif";
			document.getElementById("SY9").src="images/SY_09.gif";
			document.getElementById("SY10").src="images/SY_10_1.gif";
			document.getElementById("SY11").src="images/SY_11.gif";
			document.getElementById("SY12").src="images/SY_12.gif";
			break;
		case "SY11":
			document.getElementById("SY3").src="images/SY_03.gif";
			document.getElementById("SY4").src="images/SY_04.gif";
			document.getElementById("SY5").src="images/SY_05.gif";
			document.getElementById("SY6").src="images/SY_06.gif";
			document.getElementById("SY7").src="images/SY_07.gif";
			document.getElementById("SY8").src="images/SY_08.gif";
			document.getElementById("SY9").src="images/SY_09.gif";
			document.getElementById("SY10").src="images/SY_10.gif";
			document.getElementById("SY11").src="images/SY_11_1.gif";
			document.getElementById("SY12").src="images/SY_12.gif";
			break;
		case "SY12":
			document.getElementById("SY3").src="images/SY_03.gif";
			document.getElementById("SY4").src="images/SY_04.gif";
			document.getElementById("SY5").src="images/SY_05.gif";
			document.getElementById("SY6").src="images/SY_06.gif";
			document.getElementById("SY7").src="images/SY_07.gif";
			document.getElementById("SY8").src="images/SY_08.gif";
			document.getElementById("SY9").src="images/SY_09.gif";
			document.getElementById("SY10").src="images/SY_10.gif";
			document.getElementById("SY11").src="images/SY_11.gif";
			document.getElementById("SY12").src="images/SY_12_1.gif";
			break;
		case "SY":
			document.getElementById("SY3").src="images/SY_03.gif";
			document.getElementById("SY4").src="images/SY_04.gif";
			document.getElementById("SY5").src="images/SY_05.gif";
			document.getElementById("SY6").src="images/SY_06.gif";
			document.getElementById("SY7").src="images/SY_07.gif";
			document.getElementById("SY8").src="images/SY_08.gif";
			document.getElementById("SY9").src="images/SY_09.gif";
			document.getElementById("SY10").src="images/SY_10.gif";
			document.getElementById("SY11").src="images/SY_11.gif";
			document.getElementById("SY12").src="images/SY_12.gif";
			break;
	}
	
}

function news(obj)
{	
	switch(obj)
	{
		case "gz":
			document.getElementById("gz").style.display="block";
			document.getElementById("zs").style.display="none";
			document.getElementById("gzimg").src="images/gzsljnew.jpg";
			document.getElementById("zsimg").src="images/zssljnew.jpg";
			break;
		case "zs":
			document.getElementById("gz").style.display="none";
			document.getElementById("zs").style.display="block";
			document.getElementById("gzimg").src="images/gzsljnew_1.jpg";
			document.getElementById("zsimg").src="images/zssljnew_1.jpg";
			break;
	}
}