function animate(tagId,alfa,step){
 	div = document.getElementById(tagId);
 	var items = new Array();

 	for(c=i=0;i<div.childNodes.length;i++){
  		if (div.childNodes[i].tagName=="IMG"){
   			items[c] = div.childNodes[i];
   			c++;
  		}
 	}
 	last = items[items.length-1];
 	next = items[items.length-2];

 	last.style.opacity= alfa/100;
 	last.style.filter= "progid:DXImageTransform.Microsoft.Alpha(opacity="+alfa+")";
 	last.style.filter= "alpha(opacity="+alfa+")";

 	if ((alfa-step)>0){
   		setTimeout("animate('"+tagId+"',"+(alfa-step)+","+step+");",50);
 	}	else {
  		next.style.opacity= 1;
  		next.style.filter= "progid:DXImageTransform.Microsoft.Alpha(opacity=100)";
  		next.style.filter= "alpha(opacity=100)";
  		tmp = last;
  		div.removeChild(last);
  		div.insertBefore(tmp,items[0]);
  		tmp.style.opacity= 1;
  		tmp.style.filter= "progid:DXImageTransform.Microsoft.Alpha(opacity=100)";
  		tmp.style.filter= "alpha(opacity=100)";
  		setTimeout( "slideSwitch('"+tagId+"', 1000)", 1000 );
 	}
}

function slideSwitch( tagId, speed){
 	div = document.getElementById('slideshow');
 	if (div.style.visibility!="visible"){
      	div.style.visibility = "visible";
 	}
 	items = div.getElementsByTagName('img');
 	if (items.length>0){
  		animate( tagId,100,10);
 	}
}

function pageOnload() {
	setTimeout( "slideSwitch( 'slideshow', 4000);",4000 );
	document.getElementById('slide-container').style.visibility = 'visible';
}