var SLB_cnt = 0;

function SLB(url, type)
{
	var a = document.getElementById('SLB_film');
	var b = document.getElementById('SLB_content');
	var c = document.getElementById('SLB_loading');
	if(url) {
		a.style.top = 0;
		a.style.left = 0;
		a.style.display = '';
		if (document.documentElement.scrollHeight > document.body.scrollHeight) {
			a.style.height = document.documentElement.scrollHeight + 'px';
		}
		else {
			a.style.height = document.body.scrollHeight + 'px';
		}
		c.style.display = 'block';
		SLB_setCenter(c,true);
		if(type == 'image') {
			b.innerHTML = '<img src='+url+' class="SLB_center" onload="SLB_setCenter(this)" />';
			if(arguments[2]) a.onclick = function () { SLB() };
			if(arguments[3]) b.innerHTML += '<div class="SLB_caption">'+arguments[3]+'</div>';
		}
		else if(type == 'iframe') {
			b.innerHTML = '<iframe id="SLB_iframe" src="'+url+'" width="'+arguments[2]+'" height="'+arguments[3]+'" class="SLB_center" marginwidth="0" marginheight="0" frameborder="0" vspace="0" hspace="0" onload="tryReHeight('+arguments[5]+');"/></iframe>';
			if(arguments[4]) {
				b.innerHTML += '<div class="SLB_close" onclick="SLB()" title="´Ý±â">close</div>';
			}
			b.onclick = '';
			b.firstChild.style.cursor = 'default';
		}
		else if(type == 'html') {
			b.innerHTML = url;
			SLB_setCenter(b.firstChild);
			if(arguments[2]) b.onclick = '';
		}
		hideSelect();
	}
	else {
		a.onclick = '';
		a.style.display = 'none';
		a.style.height = '100%';
		a.style.width = '100%';
		b.innerHTML = '';
		b.onclick = function () { SLB(); };
		c.style.display = 'none';
		showSelect();
		SLB_cnt = 0;
	}
}

function SLB_setCenter(obj)
{
	if(obj) {
		var h = (window.innerHeight || self.innerHeight || document.documentElement.clientHeight || document.body.clientHeight);
		var w = (window.innerWidth || self.innerWidth || document.documentElement.clientWidth || document.body.clientWidth);
		var l = ((window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft) + ((w-(obj.width||parseInt(obj.style.width)||obj.offsetWidth))/2));
		var t = ((window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop) + ((h-(obj.height||parseInt(obj.style.height)||obj.offsetHeight))/2));
		if((obj.width||parseInt(obj.style.width)||obj.offsetWidth) >= w) l = 0;
		if((obj.height||parseInt(obj.style.height)||obj.offsetHeight) >= h) t = (window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop);
		document.getElementById('SLB_content').style.left = l + 'px';
		if(SLB_cnt == 0) {
			document.getElementById('SLB_content').style.top = t + 'px';
			if(document.getElementById('SLB_content').offsetHeight >= h - 20) {
				SLB_cnt ++;
			}
			if(obj.nextSibling && (obj.nextSibling.className == 'SLB_close' || obj.nextSibling.className == 'SLB_caption')) {
				obj.nextSibling.style.display = 'block';
				if((t - (window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop))>(obj.nextSibling.offsetHeight/2)) {
					document.getElementById('SLB_content').style.top = parseInt(document.getElementById('SLB_content').style.top) - (obj.nextSibling.offsetHeight/2) + 'px';
				}
			}
		}
		obj.style.visibility = 'visible';
		if(!arguments[1]) {
			document.getElementById('SLB_loading').style.display = 'none';
		} else {
			obj.style.left = l + 'px';
			obj.style.top = t + 'px';
		}
	}
}

function hideSelect()
{
	var windows = window.frames.length;
	var selects = document.getElementsByTagName('SELECT');
	var i, j;
	for(i=0; i < selects.length; i++) {
		selects[i].style.visibility = 'hidden';
	}
	if(windows > 0) {
		for(i=0; i < windows; i++) {
			try {
				var selects = window.frames[i].document.getElementsByTagName('SELECT');
				for(j=0; j < selects.length; j++) {
					selects[j].style.visibility = 'hidden';
				}
			}
			catch(e) { }
		}
	}
}

function showSelect()
{
	var windows = window.frames.length;
	var selects = document.getElementsByTagName('SELECT');
	var i, j;
	for(i=0; i < selects.length; i++)
	{
		selects[i].style.visibility = 'visible';
	}
	if(windows > 0) {
		for(i=0; i < windows; i++) {
			try {
				var selects = window.frames[i].document.getElementsByTagName('SELECT');
				for(j=0; j < selects.length; j++) {
					selects[j].style.visibility = 'visible';
				}
			}
			catch(e) { }
		}
	}
}

function tryReHeight(sign)
{
	var getFFVersion = navigator.userAgent.substring(navigator.userAgent.indexOf('Firefox')).split('/')[1];
	var FFextraHeight = parseFloat(getFFVersion)>=0.1? 16 : 0;
	var currentfr = document.getElementById('SLB_iframe');
	if(sign == true) {
		try {
			if(currentfr.contentDocument && currentfr.contentDocument.body.offsetHeight) {
				setIframeSize(currentfr.contentDocument.body.offsetHeight+FFextraHeight);
			}
			else if(currentfr.Document && currentfr.Document.body.scrollHeight) {
				setIframeSize(currentfr.Document.body.scrollHeight);
			}
		}
		catch(e) { }
	}
	else {
		SLB_setCenter(currentfr);
	}
}

function setIframeSize(h, w)
{
	SLB_cnt = 0;
	var ifr = currentfr=document.getElementById('SLB_iframe');
	if(ifr) {
		if(w) {
			ifr.width = w;
		}
		if(h) {
			ifr.height = h;
		}
		SLB_setCenter(ifr);
	}
}

if(document.getElementById('SLB_film')) {
var prevOnScroll = window.onscroll;
window.onscroll = function() {
	if(prevOnScroll != undefined) prevOnScroll();
	if(document.documentElement.scrollHeight > document.body.scrollHeight) {
		document.getElementById('SLB_film').style.height = document.documentElement.scrollHeight + 'px';
	}
	else {
		document.getElementById('SLB_film').style.height = document.body.scrollHeight + 'px';
	}
	document.getElementById('SLB_film').style.width = document.body.scrollWidth + 'px';
	SLB_setCenter(document.getElementById('SLB_content').firstChild);
}

var prevOnResize = window.onresize;
window.onresize = function() {
	if(prevOnResize != undefined) prevOnResize();
	if(document.documentElement.scrollHeight > document.body.scrollHeight) {
		document.getElementById('SLB_film').style.height = document.documentElement.scrollHeight + 'px';
	}
	else {
		document.getElementById('SLB_film').style.height = document.body.scrollHeight + 'px';
	}
	document.getElementById('SLB_film').style.width = document.body.offsetWidth + 'px';
	SLB_setCenter(document.getElementById('SLB_content').firstChild);
}
}

// ========================================================

function slb_refresh()
{
	SLB();
	location.reload();
}

function slb_replace(url)
{
	SLB();
	location.replace(url);
}

function slb_gopage(url)
{
	SLB();
	location.href=url;
}