var na = 8 //大类菜单数
var subNum = new Array()
//各小类菜单数
subNum[1] = 4
subNum[2] = 2
subNum[3] = 4
subNum[4] = 5
subNum[5] = 3
subNum[6] = 3
subNum[7] = 3
subNum[8] = 2



function cc_main(x) {
	var curDis = document.getElementById("m"+x).style.display
	for (i=1;i<na+1;i++) {
		document.getElementById("m"+i).style.display = "none"
		document.getElementById("m"+i+"_img").src="http://www.deqingmuseum.com/Skin/Ocean/folder.gif"
	}
	if (curDis=="none") {
		document.getElementById("m"+x).style.display="block"
		document.getElementById("m"+x+"_img").src="http://www.deqingmuseum.com/Skin/Ocean/folder.gif"
	}
}

function cc_sub(x,y) {
	
	var curDis = document.getElementById("m"+x+"_"+y).style.display
	for (i=1;i<subNum[x]+1;i++) {
		document.getElementById("m"+x+"_"+i).style.display = "none"
		document.getElementById("m"+x+"_"+i+"_img").src="http://www.deqingmuseum.com/Skin/Ocean/folder_sub.gif"
	}
	if (curDis=="none") {
		document.getElementById("m"+x+"_"+y).style.display="block"
		document.getElementById("m"+x+"_"+y+"_img").src="http://www.deqingmuseum.com/Skin/Ocean/folder_sub.gif"
	}
		
}