/* Cross Browser Image Fader © 2007 John Davenport Scheuer
   This comment must remain for Legal Use  */

var faders=[];
// Preset each image's initial opacity (0 to 100):
// ex:  faders[x]=['image_id', initial_opacity];
faders[0]=['rand', 0];

////////////// Stop Editing //////////////

function fade(el,  op, opinc, speed){
way='in';
if(!fade.prprt&&!fade.ie)
return;
var id=typeof el=='string'? el : el.id, el=typeof el=='object'? el : document.getElementById(el);
clearTimeout(fade[id+'timer']);
var op_obj=fade.ie6? el.filters[0] : el.style,
waym=way=='in'? 1 : -1, speed=speed? speed*1 : 30, opinc=opinc&&opinc>=1? opinc*(fade.ie? 1 : .01) : opinc? opinc : fade.ie? 5 : .05,
op=op&&fade.ie? op*1 : op&&op*1>=1? Math.min(op*.01, .99) : op? op : waym>0&&fade.ie? 100 : waym>0? .99 : 0;
if(!fade.ie6&&!fade[id+'yet']){
if(fade.prprt)
op_obj[fade.prprt]=Math.min(fade.preset(id)*.01, .99);
else if(fade.ie)
op_obj.filter='alpha(opacity='+fade.preset(id)+')';
fade[id+'yet']=true;
}
if(fade.prprt&&Math.abs(op*1-op_obj[fade.prprt]*1)<opinc)
op_obj[fade.prprt]=op;
else if(fade.prprt)
op_obj[fade.prprt]=fade.ie6? op_obj[fade.prprt]*1 + opinc*waym : Math.min(op_obj[fade.prprt]*1 + opinc*waym, .99);
else if (fade.ie&&Math.abs(op*1 - op_obj.filter.replace(/\D/g,'')*1)<opinc)
op_obj.filter='alpha(opacity='+op+')';
else if (fade.ie)
op_obj.filter='alpha(opacity='+[op_obj.filter.replace(/\D/g,'')*1 + opinc*waym]+')';
else
return;
if(op_obj[fade.prprt]&&op_obj[fade.prprt]*waym<op*waym||!fade.ie6&&fade.ie&&op_obj.filter.replace(/\D/g,'')*waym<op*waym)
fade[id+'timer']=setTimeout(function(){fade(el, way, op, opinc, speed)}, speed);
}
if(document.documentElement&&document.documentElement.style){
fade.d=document.documentElement, fade.t=function(o){return typeof fade.d.style[o]=='string'}; if(fade.d.filters)
document.write('<span id="ie_test" style="filter:progid:DXImageTransform.Microsoft.alpha(opacity=0);position:absolute;top:-1000px;">p<\/span>');
fade.ie=fade.d.filters&&ie_test.filters[0], fade.ie6=fade.ie&&typeof ie_test.filters[0].opacity=='number',
fade.prprt=fade.t('opacity')||fade.ie6? 'opacity' : fade.t('MozOpacity')? 'MozOpacity' : fade.t('KhtmlOpacity')? 'KhtmlOpacity' : null;
}
fade.set=function(){
var prop=fade.prprt=='opacity'? 'opacity' : fade.prprt=='MozOpacity'? '-moz-opacity' : '-khtml-opacity';
document.write('\n<style type="text/css">\n')
for (var i = 0; i < faders.length; i++)
document.write('#'+faders[i][0]+' {\n'+
(fade.ie? 'filter:progid:DXImageTransform.Microsoft.alpha(opacity='+faders[i][1]+')' : prop+':'+Math.min(faders[i][1]*.01, .99))+';\n}\n');
document.write('<\/style>\n')
}
fade.preset=function(id){
for (var i = 0; i < faders.length; i++)
if (id==faders[i][0])
return faders[i][1];
return 0;
}
if(fade.prprt||fade.ie)
fade.set();

	var position=0;
    var Announcement =
    {
		getRdAnnou: function()
		{
			var a_link = [];
			a_link[0]="?showtopic=3365&view=findpost&p=44713";
			a_link[1]="?showtopic=4105&pid=51343&st=0";
			a_link[2]="?showtopic=3798&view=findpost&p=48755";
			var l = "http://chuyen-qb.com/forum/images/";
			var img_link = [];
			img_link[0] = l + "hl_acqbhn.jpg";
			img_link[1] = l + "hl_davibook-300-202.jpg";
			img_link[2] = l + "hl_tamlongvangacqb.jpg";
			var content = [];
			content[0] = "<div class='vimg'><p><a href='" + a_link[0] + "'><img id='rand' onload='fade(this,  100, 2, 30)' src='" + img_link[0] + "'><font color=blue><b><br />Đồng hành cùng Tân sinh viên - ACQB HN</b></font></a></p></div>";
			content[1] = "<div class='vimg'><p><a href='" + a_link[1] + "'><img id='rand' onload='fade(this,  100, 2, 30)' src='" + img_link[1] + "'><font color=blue><b><br />Nhà sách Đất Việt giảm giá bán cho thành viên diễn đàn</b></font></a></p></div>";
			content[2] = "<div class='vimg'><p><a href='" + a_link[2] + "'><img id='rand' onload='fade(this,  100, 2, 30)' src='" + img_link[2] + "'><font color=blue><b><br />Phát động ủng hộ em Diệu Trúc</b></font></a></p></div>";
			var maxLength = content.length;
			position ++;
			if (position > maxLength - 1) position = 0;
			//var position = Math.floor(Math.random() * maxLength);
			return Announcement.displayAnnou('contentWrapper', content[position]);
			
		},
		displayAnnou: function(ctl, ct)
		{
			ctl = document.getElementById(ctl);
			ctl.innerHTML = ct;
			setTimeout('Announcement.getRdAnnou()',5000);
		}	
    };

    Announcement.getRdAnnou();