<!--

//Autumn leaves- by Kurt Grigg (kurt.grigg@virgin.net)
//Modified by Dynamic Drive for NS6 functionality
//visit http://www.dynamicdrive.com for this script

//Pre-load your image below!
grphcs = new Array(6)

// leaves
//iFolder = "/_scripts/fallingleaves/";

// snowflakes
iFolder = "/_scripts/fallingleaves/snowflakes/";

Image0 = new Image();
Image0.src = grphcs[0] = iFolder + "al.gif";
Image1 = new Image();
Image1.src = grphcs[1] = iFolder + "bl.gif";
Image2 = new Image();
Image2.src = grphcs[2] = iFolder + "cl.gif";
Image3 = new Image();
Image3.src = grphcs[3] = iFolder + "dl.gif";
Image4 = new Image();
Image4.src = grphcs[4] = iFolder + "el.gif";
Image5 = new Image();
Image5.src = grphcs[5] = iFolder + "fl.gif" ;

Amount = 7; //Smoothness depends on image file size, the smaller the size the more you can use!
Ypos = new Array();
Xpos = new Array();
Speed = new Array();
Step = new Array();
Cstep = new Array();
ns = (document.layers) ? 1 : 0;
ns6 = (document.getElementById && !document.all) ? 1 : 0;

if (ns) {
 for (i = 0; i < Amount; i++) {
  var P = Math.floor(Math.random() * grphcs.length);
  rndPic = grphcs[P];
  document.write("<LAYER NAME='sn" + i + "' LEFT=-200 TOP=0><img src=" + rndPic + "></LAYER>");
 }
}
else {
 document.write('<div style="position:absolute;top:0px;left:-200px; z-index: 10"><div style="position:relative">');
 for (i = 0; i < Amount; i++) {
  var P = Math.floor(Math.random() * grphcs.length);
  rndPic = grphcs[P];
  document.write('<img id="si' + i + '" src="' + rndPic + '" style="position:absolute;top:0px;left:0px">');
 }
 document.write('</div></div>');
}

WinHeight = (ns || ns6) ? window.innerHeight : window.document.body.clientHeight;
WinWidth = (ns || ns6) ? window.innerWidth - 70 : window.document.body.clientWidth;
for (i = 0; i < Amount; i++) {
 Ypos[i] = Math.round(Math.random() * WinHeight);
 // customization
 // instead of having leaves appear on the screen, had them drop in from the top by
 // subtracting the window height from the random y coordinate
 Ypos[i] = Ypos[i] - WinHeight;
 // end customzation
 Xpos[i] = Math.round(Math.random() * WinWidth);
 Speed[i] = Math.random() * 5 + 3;
 Cstep[i] = 0;
 Step[i] = Math.random()*0.1 + 0.05;
}

function fall() {

 var WinHeight = (ns || ns6) ? window.innerHeight : window.document.body.clientHeight;
 var WinWidth = (ns || ns6) ? window.innerWidth - 70 : window.document.body.clientWidth;
 var hscrll = (ns || ns6) ? window.pageYOffset : document.body.scrollTop;
 var wscrll = (ns || ns6) ? window.pageXOffset : document.body.scrollLeft;

 for (i = 0; i < Amount; i++) {

  sy = Speed[i] * Math.sin(90 * Math.PI / 180);
  sx = Speed[i] * Math.cos(Cstep[i]);
  Ypos[i] += sy;
  Xpos[i] += sx; 

  if (Ypos[i] > WinHeight) {
   Ypos[i] = -60;
   Xpos[i] = Math.round(Math.random() * WinWidth);
   Speed[i] = Math.random() * 5+3;
  }

  if (ns) {
   document.layers['sn' + i].left = Xpos[i];
   document.layers['sn' + i].top = Ypos[i] + hscrll;
  }
  else if (ns6) {
   document.getElementById("si" + i).style.left = Math.min(WinWidth, Xpos[i]);
   document.getElementById("si" + i).style.top = Ypos[i] + hscrll;
  }
  else{
   eval("document.all.si" + i).style.left = Xpos[i];
   eval("document.all.si" + i).style.top = Ypos[i] + hscrll;
  } 
  Cstep[i] += Step[i];
 }

 setTimeout('fall()', 50);

}

//window.onload=fall;

//-->
