// CREDITS:
// Snowmaker Copyright (c) 2003 Peter Gehrig. All rights reserved.
// Distributed by http://www.hypergurl.com
// Permission given to use the script provided that this notice remains as is.

// Set the number of snowflakes (more than 30 - 40 not recommended)
var snowmax=35

// Set the colors for the snow. Add as many colors as you like
var snowcolor=new Array("#aaaacc","#ddddFF","#ccccDD")

// Set the fonts, that create the snowflakes. Add as many fonts as you like
var snowtype=new Array("Arial Black","Arial Narrow","Times","Comic Sans MS")

// Set the letter that creates your snowflake (recommended:*)
var snowletter="*"

// Set the speed of sinking (recommended values range from 0.3 to 2)
var sinkspeed=0.6

// Set the maximal-size of your snowflaxes
var snowmaxsize=50

// Set the minimal-size of your snowflaxes
var snowminsize=12

// Set the snowing-zone
// Set 1 for all-over-snowing, set 2 for left-side-snowing 
// Set 3 for center-snowing, set 4 for right-side-snowing
var snowingzone=1

///////////////////////////////////////////////////////////////////////////
// CONFIGURATION ENDS HERE
///////////////////////////////////////////////////////////////////////////


// Do not edit below this line
var snow=new Array()
var marginbottom
var marginright
var timer
var i_snow=0
var x_mv=new Array();
var crds=new Array();
var lftrght=new Array();
var browserinfos=navigator.userAgent 
var ie5=document.all&&document.getElementById&&!browserinfos.match(/Opera/)
var ns6=document.getElementById&&!document.all
var opera=browserinfos.match(/Opera/)  
var browserok=ie5||ns6||opera

function getPageSizeWithScroll(){
	if (window.innerHeight && window.scrollMaxY) {// Firefox
		yWithScroll = window.innerHeight + window.scrollMaxY;
		xWithScroll = window.innerWidth + window.scrollMaxX;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		yWithScroll = document.body.scrollHeight;
		xWithScroll = document.body.scrollWidth;
	} else { // works in Explorer 6 Strict, Mozilla (not FF) and Safari
		yWithScroll = document.body.offsetHeight;
		xWithScroll = document.body.offsetWidth;
  	}
	arrayPageSizeWithScroll = new Array(xWithScroll,yWithScroll);
	//alert( 'The height is ' + yWithScroll + ' and the width is ' + xWithScroll );
	return arrayPageSizeWithScroll;
}

function randommaker(range) {   
  rand=Math.floor(range*Math.random())
    return rand
}

function initsnow() {
  var pageSize = getPageSizeWithScroll();
  if (ie5 || opera) {
    marginbottom = pageSize[1];
    marginright = pageSize[0];
  }
  else if (ns6) {
    marginbottom = pageSize[1];
    marginright = pageSize[0];
  }
  var snowsizerange=snowmaxsize-snowminsize
  for (i=0;i<=snowmax;i++) {
    crds[i] = 0;                      
    lftrght[i] = Math.random()*15;         
    x_mv[i] = 0.03 + Math.random()/10;
    snow[i]=document.getElementById("s"+i);
    snow[i].style.fontFamily=snowtype[randommaker(snowtype.length)];
    snow[i].size=randommaker(snowsizerange)+snowminsize;
    snow[i].style.fontSize=snow[i].size;
    snow[i].style.color=snowcolor[randommaker(snowcolor.length)];
    snow[i].sink=sinkspeed*snow[i].size/5;
    if (snowingzone==1) {snow[i].posx=randommaker(marginright-snow[i].size)}
    if (snowingzone==2) {snow[i].posx=randommaker(marginright/2-snow[i].size)}
    if (snowingzone==3) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/4}
    if (snowingzone==4) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/2}
    snow[i].posy=randommaker(6*marginbottom-marginbottom-6*snow[i].size);
    snow[i].style.left=snow[i].posx;
    snow[i].style.top=snow[i].posy;
    snow[i].style.zIndex=100;
  }
  movesnow();
}

function movesnow() {
  for (i=0;i<=snowmax;i++) {
    crds[i] += x_mv[i];
    snow[i].posy+=snow[i].sink
    snow[i].style.left=snow[i].posx+lftrght[i]*Math.sin(crds[i]);
    snow[i].style.top=snow[i].posy
    
    if (snow[i].posy>=marginbottom-6*snow[i].size || parseInt(snow[i].style.left)>(marginright-3*lftrght[i])){
      if (snowingzone==1) {snow[i].posx=randommaker(marginright-snow[i].size)}
      if (snowingzone==2) {snow[i].posx=randommaker(marginright/2-snow[i].size)}
      if (snowingzone==3) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/4}
      if (snowingzone==4) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/2}
      snow[i].posy=0
    }
  }
  var timer=setTimeout("movesnow()",50)
}

function startsnow() {
	for (i=0;i<=snowmax;i++) {
		var snowSpan = document.createElement('span');
		snowSpan.id='s' + i;
		snowSpan.style.position='absolute';
		snowSpan.style.top=-snowmaxsize;
		snowSpan.innerHTML=snowletter;
		document.body.appendChild(snowSpan);
  	//document.write("<span id='s"+i+"' style='position:absolute;top:-"+snowmaxsize+"'>"+snowletter+"</span>")
	}
	
	if (browserok) {
  	initsnow();
	}
}

setTimeout("startsnow()", 50);