// Original script by Altan (Snow@altan.hr), copyright 1999 Altan d.o.o. // http://www.altan.hr/snow/index.html
// Modified by Paul Anderson, copyright 2001 CNET Builder.com

var snowflake = "/pic/snow.gif";
var no = 9; // number of snowflakes on the screen
var speed = 12; // smaller numbers make the snow fall faster
var dx, xp, yp; // coordinate and position variables
var am, stx, sty; // amplitude and step variables
var obj, i, doc_width = 800, doc_height = 600;
var fs;
dx = new Array();	xp = new Array();	yp = new Array();
am = new Array();	stx = new Array();	sty = new Array();
fs = new Array();

document.write("<STYLE type=\"text/css\">.flake {position:absolute;top:-200;}</STYLE>");
for (i = 0; i < no; i++) {
	dx[i] = 0; // set coordinate variables
	xp[i] = Math.random()*(doc_width-30) +10; // set position variables
	yp[i] = Math.random()*doc_height;
	am[i] = Math.random()*20; // set amplitude variables
	stx[i] = 0.02 + Math.random()/10; // set step variables
	sty[i] = 0.7 + Math.random(); // set step variables
	fs[i] = Math.random()*10 + 1
	document.write("<div id=\"dot"+ i +"\" class=\"flake\"><img width=" + ((fs[i]*25)/10) + " height=" + ((fs[i]*28)/10) + " src=\"");
	document.write(snowflake + "\" border=\"0\"></div>");
}

function snowMove(id,left,top){
	obj = document.getElementById?document.getElementById(id).style:
	document.all?document.all[id].style:
	document.layers?document.layers[id]:null;
	if (obj) {
		obj.left=left;
		obj.top=top;
	}
}

function snow() {
	doc_width = window.innerWidth?window.innerWidth:document.body.clientWidth;
	doc_height = window.innerHeight?window.innerHeight:document.body.clientHeight;
	doc_scroll = (window.pageYOffset!=null)?window.pageYOffset:document.body.scrollTop;
	for (i = 0; i < no; ++ i) { // iterate for every dot
		yp[i] += sty[i];
		if (yp[i] > doc_height+doc_scroll-50) {
			xp[i] = Math.random()*(doc_width-am[i]-30);
			yp[i] = doc_scroll;
			stx[i] = 0.02 + Math.random()/10;
			sty[i] = 0.7 + Math.random();
		}
		dx[i] += stx[i];
		snowMove("dot"+i,xp[i]+am[i]*Math.sin(dx[i]),yp[i]);
	}
	setTimeout("snow()", speed);
}
window.onload=snow();