var isIE = (navigator.userAgent.indexOf('MSIE') > -1)? true : false;
var isOpera = (navigator.appName == 'Opera');
var isNetscape = (navigator.appName == 'Netscape');
var isFireFox = (navigator.userAgent.indexOf('FireFox') > -1)? true : false;
var isChrome = (navigator.userAgent.indexOf('Chrome') > -1)? true : false;
var resizeFlag = true;

function resizeFrame(subWin){
	if(resizeFlag) {
		try {
			var obj = null;
			if(isChrome) subWin.style.height = 1950;
			else {
					obj = subWin.contentWindow.document.body || subWin.contentDocument.body;
				var frameHeight = obj.scrollHeight - (obj.offsetHeight - obj.clientHeight);
				//alert('scroll:'+obj.scrollHeight+',offset:'+obj.offsetHeight+',client:'+obj.clientHeight);
				if(!isIE) {
					subWin.style.height = 1;
					setTimeout('',300);
					frameHeight = obj.scrollHeight;
				}
				//document.getElementById('temp').innerHTML = (obj.offsetHeight + ':' + obj.clientHeight + ':' + obj.scrollHeight);
				subWin.style.height = frameHeight;
			}
		} catch(ex) {
			alert(ex.message);
		}
	}
	resizeFlag = true;
}

function Init(index) {
	var i = 0;
	while(document.getElementById('Menu' + i) != null) {
		if(i == index)
			document.getElementById('Menu' + i).style.display = 'inline';
		else
			document.getElementById('Menu' + i).style.display = 'none';
		i++;
	}
}

function LoadBoard(boardid) {
	var board = 'http://' + document.location.host + '/bbs/zboard.php?id=' + boardid;
	var obj = document.getElementById('main');
	obj.src = board;
}

function LoadPage(url, h) {
	var obj = document.getElementById('main');

	if(h != null) {
		resizeFlag = false;
		obj.style.height = h;
		obj.src = url;
	} else {
		resizeFlag = false;
		obj.src = url;
		resizeFrame(obj);
		//obj.contentDocument.onload = rr();
	}
}


function onLoadPage(url) {
	document.getElementById('main').src = url;
	resizeFrame(document.getElementById('main'));
}