img = new Array("img/im0000_02.gif");
bfImg = new Array();
for(i=0; i<img.length; i++) {
	bfImg[i] = new Image();
	bfImg[i].src = img[i];
}
menu_flag = new Array();
for(i=0; i<10; i++) {
	menu_flag[i] =  false;
}
myOP = window.opera;
myN6 = document.getElementById;
myIE = document.all;
if      (myOP) myBR="O6";
else if (myIE) myBR="I4";
else if (myN6) myBR="N6";
else           myBR="";

function treeMenu(id) {
	if (myBR == "I4"){
		document.all[id].style.display = "block";
	}
	else if (myBR == "N6" || myBR == "O6") {
		document.getElementById(id).style.display = "block";
	}
}
function treeSelect(id) {
	document.images[id].src="img/im0000_02.gif"; 
}
function pullDown(no) {
	lay = document.all("Tmenu_"+no);
	if(menu_flag[no])	{lay.style.top  ='-500px';}
	else			{lay.style.top  ='20px';}
	menu_flag[no] = !menu_flag[no];
}
function scroll_top() {
	parent.window.scroll(0,0);
}