function miaovaddevent(oele, seventname, fnhandler)
{
	if(oele.attachevent)
	{
		oele.attachevent('on'+seventname, fnhandler);
	}
	else
	{
		oele.addeventlistener(seventname, fnhandler, false);
	}
}

window.onload = function() {
    var odiv = document.getelementbyid('miaov_float_layer');
    var obtnmin = document.getelementbyid('btn_min');
    var obtnclose = document.getelementbyid('btn_close');
    var odivcontent = odiv.getelementsbytagname('div')[0];

    var imaxheight = 0;

    var isie6 = window.navigator.useragent.match(/msie 6/ig) && !window.navigator.useragent.match(/msie 7|8/ig);

    odiv.style.display = 'block';
    imaxheight = odivcontent.offsetheight;

    if (isie6) {
        odiv.style.position = 'absolute';
        repositionabsolute();
        miaovaddevent(window, 'scroll', repositionabsolute);
        miaovaddevent(window, 'resize', repositionabsolute);
    }
    else {
        odiv.style.position = 'fixed';
        repositionfixed();
        miaovaddevent(window, 'resize', repositionfixed);
    }

    obtnmin.timer = null;
    obtnmin.ismax = true;
    obtnmin.onclick = function() {
        startmove
		(
			odivcontent, (this.ismax = !this.ismax) ? imaxheight : 0,
			function() {
			    obtnmin.classname = obtnmin.classname == 'min' ? 'max' : 'min';
			}
		);
    };

    obtnclose.onclick = function() {
        odiv.style.display = 'none';
        odiv.innerhtml = "";
    };
};

function startmove(obj, itarget, fncallbackend)
{
	if(obj.timer)
	{
		clearinterval(obj.timer);
	}
	obj.timer=setinterval
	(
		function ()
		{
			domove(obj, itarget, fncallbackend);
		},30
	);
}

function domove(obj, itarget, fncallbackend)
{
	var ispeed=(itarget-obj.offsetheight)/8;
	
	if(obj.offsetheight==itarget)
	{
		clearinterval(obj.timer);
		obj.timer=null;
		if(fncallbackend)
		{
			fncallbackend();
		}
	}

	else
	{
		ispeed=ispeed>0?math.ceil(ispeed):math.floor(ispeed);
		obj.style.height=obj.offsetheight+ispeed+'px';
		
		((window.navigator.useragent.match(/msie 6/ig) && window.navigator.useragent.match(/msie 6/ig).length==2)?repositionabsolute:repositionfixed)()
	}
}

function repositionabsolute()
{
	var odiv=document.getelementbyid('miaov_float_layer');
	var left=document.body.scrollleft||document.documentelement.scrollleft;
	var top=document.body.scrolltop||document.documentelement.scrolltop;
	var width=document.documentelement.clientwidth;
	var height=document.documentelement.clientheight;
	
	odiv.style.left=left+width-odiv.offsetwidth+'px';
	odiv.style.top=top+height-odiv.offsetheight+'px';
}

function repositionfixed()
{
	var odiv=document.getelementbyid('miaov_float_layer');
	var width=document.documentelement.clientwidth;
	var height=document.documentelement.clientheight;
	
	odiv.style.left=width-odiv.offsetwidth+'px';
	odiv.style.top=height-odiv.offsetheight+'px';
}