var subMenus = new    Array('m1','e_m1', 'm2','e_m2', 'm21','e_m21', 'm22','e_m22', 'm4','e_m4', 'm5','e_m5', 'm6','e_m6', 'l1', 'l2','e_l2', 'l21', 'l22', 'l23','e_l23', 'l3', 'l4', 'l5','e_l5', 'l51','e_l51');
var subMenuTop = new  Array(0,   0,      0,   0,      0,    0,       33,   33,      0,   0,      0,   0,      0,   0,     13,   43,   43,     43,    65,    87,   87,      70,   90,   223, 223,    223,  223);
var subMenuLeft = new Array(5,   0,      164, 152,    292,  314,     292,  314,     423, 411,    534, 536,    646, 660,   0,    0,    0,      100,   100,   125,  125,     0,    0,    0,   0,      100,  100);

//check browser verson
var ie4=document.all?1:0
var ns6=document.getElementById&&!document.all?1:0

function fixedPos() {
	for(i=0; i<subMenus.length; i++) {
		var subobj = getObject(subMenus[i]);
		if(subobj!=null && subobj.style.display == "block") {
			if (ie4) {
				subobj.style.pixelTop= document.body.scrollTop + subMenuTop[i];
				subobj.style.pixelLeft = document.body.scrollLeft + subMenuLeft[i];
			}
			else if (ns6) {
				subobj.style.top=window.pageYOffset + subMenuTop[i];
				subobj.style.left=window.pageXOffset + subMenuLeft[i];
			}
		}
	}
	setTimeout("fixedPos()",0);
}

function showHideMenu(obj, status) 
{
	var subobj = getObject(obj);
	if(subobj==null) {
		return;
	}

	if(status=='block' || status=='none') {
		subobj.style.display = status;
		return;
	}

	if( subobj.style.display == "block") {
		subobj.style.display = "none";
	} else {
		subobj.style.display = "block";
	}
}

function showMenu(obj) 
{
	for(i=0; i<subMenus.length; i++) {
		if(obj.length>2) {
			//keep it's upper level but close all others
			if(subMenus[i]==obj.substr(0, obj.length-1)) {
				showHideMenu(subMenus[i], 'block');
				continue;
			}
		}
		showHideMenu(subMenus[i], 'none');
	}
	showHideMenu(obj, 'block');
}

function hideAllMenu()
{
	for(i=0; i<subMenus.length; i++) {
		showHideMenu(subMenus[i], 'none');
	}
}

function preloadImages()
{
	MM_preloadImages('_image/top01-over.gif', '_image/top02-over.gif', '_image/top03-over.gif');
	MM_preloadImages('_image/top04-over.gif', '_image/top05-over.gif', '_image/top06-over.gif');
	MM_preloadImages('_image/top07-over.gif');

	MM_preloadImages('_image/e-top01-over.gif', '_image/e-top02-over.gif', '_image/e-top03-over.gif');
	MM_preloadImages('_image/e-top04-over.gif', '_image/e-top05-over.gif', '_image/e-top06-over.gif');
	MM_preloadImages('_image/e-top07-over.gif');
	
	MM_preloadImages('_image/subtop-a01.gif', '_image/subtop-a01-over.gif', '_image/subtop-a02.gif', '_image/subtop-a02-over.gif');
	MM_preloadImages('_image/subtop-a03.gif', '_image/subtop-a03-over.gif', '_image/subtop-a04.gif', '_image/subtop-a04-over.gif');
	MM_preloadImages('_image/subtop-a05.gif', '_image/subtop-a05-over.gif', '_image/subtop-a06.gif', '_image/subtop-a06-over.gif');

	MM_preloadImages('_image/subtop-b01.gif', '_image/subtop-b01-over.gif', '_image/subtop-b02.gif', '_image/subtop-b02-over.gif');
	MM_preloadImages('_image/subtop-b03.gif', '_image/subtop-b03-over.gif');

	MM_preloadImages('_image/subtop-b01a.gif', '_image/subtop-b01a-over.gif', '_image/subtop-b01b.gif', '_image/subtop-b01b-over.gif');

	MM_preloadImages('_image/subtop-b02a.gif', '_image/subtop-b02a-over.gif', '_image/subtop-b02b.gif', '_image/subtop-b02b-over.gif');
	MM_preloadImages('_image/subtop-b02c.gif', '_image/subtop-b02c-over.gif');

	MM_preloadImages('_image/subtop-c01.gif', '_image/subtop-c01-over.gif', '_image/subtop-c02.gif', '_image/subtop-c02-over.gif');
	MM_preloadImages('_image/subtop-c03.gif', '_image/subtop-c03-over.gif');

	MM_preloadImages('_image/subtop-d01.gif', '_image/subtop-d01-over.gif', '_image/subtop-d02.gif', '_image/subtop-d02-over.gif');
	MM_preloadImages('_image/subtop-d03.gif', '_image/subtop-d03-over.gif', '_image/subtop-d04.gif', '_image/subtop-d04-over.gif');

	MM_preloadImages('_image/subtop-e01.gif', '_image/subtop-e01-over.gif', '_image/subtop-e02.gif', '_image/subtop-e02-over.gif');
	MM_preloadImages('_image/subtop-e03.gif', '_image/subtop-e03-over.gif');

	MM_preloadImages('_image/subtop-f01.gif', '_image/subtop-f01-over.gif', '_image/subtop-f02.gif', '_image/subtop-f02-over.gif');
	MM_preloadImages('_image/subtop-f03.gif', '_image/subtop-f03-over.gif', '_image/subtop-f04.gif', '_image/subtop-f04-over.gif');

	MM_preloadImages('_image/left01-over.gif', '_image/left02-over.gif', '_image/left03-over.gif');
	MM_preloadImages('_image/left04-over.gif', '_image/left05-over.gif', '_image/left06-over.gif');
	MM_preloadImages('_image/left07-over.gif');

	MM_preloadImages('_image/e-left01-over.gif', '_image/e-left02-over.gif', '_image/e-left03-over.gif');
	MM_preloadImages('_image/e-left04-over.gif', '_image/e-left05-over.gif', '_image/e-left06-over.gif');
	MM_preloadImages('_image/e-left07-over.gif');

	MM_preloadImages('_image/subleft-a01.gif', '_image/subleft-a01-over.gif');
	MM_preloadImages('_image/subleft-a02.gif', '_image/subleft-a02-over.gif');
	MM_preloadImages('_image/subleft-b01.gif', '_image/subleft-b01-over.gif');
	MM_preloadImages('_image/subleft-b02.gif', '_image/subleft-b02-over.gif');
	MM_preloadImages('_image/subleft-b03.gif', '_image/subleft-b03-over.gif');
	MM_preloadImages('_image/subleft-b01a.gif', '_image/subleft-b01a-over.gif');
	MM_preloadImages('_image/subleft-b01b.gif', '_image/subleft-b01b-over.gif');
	MM_preloadImages('_image/subleft-b01c.gif', '_image/subleft-b01c-over.gif');
	MM_preloadImages('_image/subleft-d01.gif', '_image/subleft-d01-over.gif');
	MM_preloadImages('_image/subleft-g01.gif', '_image/subleft-g01-over.gif');
	MM_preloadImages('_image/subleft-g02.gif', '_image/subleft-g02-over.gif');
	MM_preloadImages('_image/subleft-g01a.gif', '_image/subleft-g01a-over.gif');
	MM_preloadImages('_image/subleft-g01b.gif', '_image/subleft-g01b-over.gif');
	MM_preloadImages('_image/subleft-g01c.gif', '_image/subleft-g01c-over.gif');
}