// JavaScript Document

// Change Main Frame
function chgMain(arg) {
	var ext;
	switch (arg) {
	case 'top':
		ext = 'php';
		break;
	case 'hall':
		ext = 'html';
		break;
	case 'fune':
		ext = 'html';
		break;
	case 'acce':
		ext = 'html';
		break;
	case 'tomo':
		ext = 'html';
		break;
	case 'faq':
		ext = 'html';
		break;
	case 'cont':
		ext = 'html';
		break;
	case 'link':
		ext = 'html';
		break;
	case 'comp':
		ext = 'php';
		break;
	}
	window.top.hall_main.location.href = '/hall/' + arg + '/' + arg + '.' + ext;
}

// Change Menu
function chgMenu(arg) {
	var mnt = new Array('top', 'hall', 'fune', 'acce', 'tomo', 'faq', 'cont');
	var mnb = new Array('link', 'comp');
	var w;
	/* reset top */
	for (i=0; i<mnt.length; i++) {
		w = mnt[i];
		if (w == arg) {
			window.top.hall_top.document.getElementById(w).src = './img/menu/' + w + '_a.gif';
			window.top.hall_lft.document.getElementById(w).style.display = 'block';
		} else {
			window.top.hall_top.document.getElementById(w).src = './img/menu/' + w + '_n.gif';
			window.top.hall_lft.document.getElementById(w).style.display = 'none';
		}
	}
	/* reset btm */
	for (i=0; i<mnb.length; i++) {
		w = mnb[i];
		if (w == arg) {
			window.top.hall_btm.document.getElementById(w).src = './img/menu/' + w + '_a.gif';
			window.top.hall_lft.document.getElementById(w).style.display = 'block';
		} else {
			window.top.hall_btm.document.getElementById(w).src = './img/menu/' + w + '_n.gif';
			window.top.hall_lft.document.getElementById(w).style.display = 'none';
		}
	}
	/* change left */
	var bdy = window.top.document.getElementById('hall_bdy');
	switch (arg) {
	case 'top':
		bdy.cols = '0,*';
		break;
	case 'hall':
		bdy.cols = '160,*';
		break;
	case 'fune':
		bdy.cols = '0,*';
		break;
	case 'acce':
		bdy.cols = '160,*';
		break;
	case 'tomo':
		bdy.cols = '0,*';
		break;
	case 'faq':
		bdy.cols = '160,*';
		break;
	case 'cont':
		bdy.cols = '0,*';
		break;
	case 'link':
		bdy.cols = '0,*';
		break;
	case 'comp':
		bdy.cols = '0,*';
		break;
	}
}

// Change Tree View
function chgTree(arg) {
	var tgt = window.top.hall_lft.document.getElementById(arg);
	if (tgt.style.display == 'none') {
		tgt.style.display = 'block';
		window.top.hall_lft.document.getElementById('i'+arg).src = './img/btm.gif';
	} else {
		tgt.style.display = 'none';
		window.top.hall_lft.document.getElementById('i'+arg).src = './img/btp.gif';
	}
}