// JavaScript Document


var positions = new Array();
window.addEvent('domready', function() {
  var div = $('main');
  var s = div.innerHTML;
  var ns = "";
  for (var i=0;i<s.length;i++) {
	if (s.substr(i,1) == "^") ns += "<div id='d"+i+"' class='clear'>&nbsp;</div>"; else
	if (s.substr(i,1) == ' ') ns += "<div id='d"+i+"'>&nbsp;</div>"; else
	  ns += "<div id='d"+i+"'>"+s.substr(i,1)+"</div>";
  }
  div.innerHTML = ns;
  var ds = div.getElementsByTagName("div");
  for (i=0;i<ds.length;i++) {
	
	var p = $(ds[i].id).getPosition();
	positions[ds[i].id] = { x:p.x, y:p.y, speed:Math.round(Math.random()*50+25) }
  }
  startAnimation();
//$('element').getPosition()   
});

function startAnimation() {
  var div = $('main');	
  var ds = div.getElementsByTagName("div");
  var delList = new Array();
  for (i=0;i<ds.length;i++) {
	if (ds[i].innerHTML == "&nbsp;") ds[i].className = "ignore"; else ds[i].className = "k";
      ds[i].style.position="absolute";
	  ds[i].style.left = positions[ds[i].id].x + "px";
	  ds[i].style.top = -15-Math.round(Math.random()*50) + "px";
	  ds[i].style.color = "#000";
  }
  enterMatrix();
}

function enterMatrix() {
  var again = false;
  var div = $('main');	
  //var ds = div.getElementsByTagName("div");
  var ds = $$('div.k');
  for (i=0;i<ds.length;i++) {
	var y = ds[i].style.top.replace(/px/,"")*1;
	var dif = Math.abs(y-positions[ds[i].id].y);
	ds[i].style.color = "rgb(0," + Math.min(200,255-dif)+",0)";
	if (y<positions[ds[i].id].y) {
	  ds[i].style.top = Math.round(y + positions[ds[i].id].speed) + "px";
	  positions[ds[i].id].speed = Math.round(Math.max(1,positions[ds[i].id].speed*0.9));
	  //alert(ds[i].style.top); return;
	  again = true;
	} else if (y>positions[ds[i].id].y) {
	  ds[i].style.top = positions[ds[i].id].y + "px";
	  ds[i].style.color = "#00CC00";
	  ds[i].className = "ignore";
	} else {
	  ds[i].style.color = "#00CC00";
	  ds[i].className = "ignore";
	}
	
  }
  if (again) window.setTimeout('enterMatrix()',25);
}