var slider=function(){
	var array=[]; var speed=10; var timer=10;
	return{
		init:function(t,c){
			var s,ds,l,i,y;
			s=document.getElementById(t); ds=s.getElementsByTagName('div'); l=ds.length; i=y=0;
			for(i=0;i<l;i++){
				var d,did; d=ds[i]; did=d.id;
				if(did.indexOf("header")!=-1){
					y++; 
					if(i==0) { d.style.slctd=1; d.style.background='#dadde5 url(/images/sermon-header-on.jpg) 0 0 no-repeat'; } else { d.style.slctd=0; }
					
					d.onclick=new Function("slider.process(this)");
					d.onmouseover=new Function("slider.mOver(this)");
					d.onmouseout=new Function("slider.mOff(this)");

				} else if(did.indexOf("content")!=-1){
					array.push(did.replace('-content','')); d.maxh=d.offsetHeight;
					d.style.display='block';
					if(c!=y&&i>1) {  
						d.style.height='0px';
						d.style.display='none'; 
					}
				} 
			}
		},
		process:function(d){
			var cl,i; cl=array.length; i=0;
			for(i;i<cl;i++){
				var s,h,c,cd;
				s=array[i]; h=document.getElementById(s+'-header');
				c=s+'-content'; cd=document.getElementById(c); clearInterval(cd.timer);
				if (h==d && cd.style.display=='none') {
					cd.style.display='block'; 
					this.islide(c,1); 
					h.style.slctd=1; 
					h.style.background='#dadde5 url(/images/sermon-header-on.jpg) 0 0 no-repeat';
				} else if (cd.style.display=='block') { 
				    this.islide(c,-1);
					h.style.slctd=0;
					h.style.background='#dadde5 url(/images/sermon-header-off.jpg) 0 0 no-repeat';
				}
				if (cd.style.display=='none' && h!=d) {
					h.style.slctd=0; 
					h.style.background='#dadde5 url(/images/sermon-header-off.jpg) 0 0 no-repeat';
				}
			}
		},
		mOver:function(d){
			if(d.style.slctd!=1) {
				d.style.background='#dadde5 url(/images/sermon-header-over.jpg) 0 0 no-repeat';
			}
			// d.style.background-color='#003399';
		},
		mOff:function(d){
		    if(d.style.slctd!=1) {
			   d.style.background='#dadde5 url(/images/sermon-header-off.jpg) 0 0 no-repeat';
			} 
		},
		islide:function(i,d){
			var c,m; 
			c=document.getElementById(i); 
			m=c.maxh; 
			c.direction=d; 
			c.timer=setInterval("slider.slide('"+i+"')",timer);
		},
		slide:function(i){
			var c,m,h,dist; c=document.getElementById(i); m=c.maxh; h=c.offsetHeight;
			dist=(c.direction==1)?Math.round((m-h)/speed):Math.round(h/speed);
			if(dist<=1){dist=1}
			c.style.height=h+(dist*c.direction)+'px'; c.style.opacity=h/c.maxh; c.style.filter='alpha(opacity='+(h*100/c.maxh)+')'; 
			if(h<2&&c.direction!=1){
				c.style.display='none'; clearInterval(c.timer); 
			} else if(h>(m-2)&&c.direction==1) {clearInterval(c.timer)}
		}
};}();