/* INCLUDE BELOW TEXT ON PAGE

<SCRIPT LANGUAGE="JavaScript" TYPE="text/javascript">
rain()
</SCRIPT>

*/

//Configure below to change URL path to the snow image
var snowsrc="./images/darkness_logo.gif"
var img_width = 100;
var img_height = 56;
// Configure below to change number of snow to render
var no = 10;

var ns4up = (document.layers) ? 1 : 0;  // browser sniffer
var ie4up = (document.all) ? 1 : 0;
var ns6up = (document.getElementById&&!document.all) ? 1 : 0;

var dx, xp, yp;    // coordinate and position variables
var am, stx, sty;  // amplitude and step variables
var i, doc_width = 200, doc_height = 200;

function snowNS() {  // Netscape main animation function
	for (i = 0; i < no; ++ i) {  // iterate for every dot
		yp[i] += sty[i];
		if (yp[i] > doc_height-img_height) {
			xp[i] = Math.random()*(doc_width-am[i]-img_width);
			yp[i] = 0;
			stx[i] = 0.02 + Math.random()/10;
			sty[i] = 1.2 + Math.random();
			doc_width = self.innerWidth;
			doc_height = self.innerHeight;
		}
		dx[i] += stx[i];
		document.layers["dot"+i].top = yp[i];
		document.layers["dot"+i].left = xp[i] + am[i]*Math.sin(dx[i]);
	}
	setTimeout("snowNS()", 10);
}

function snowIE_NS6() {  // IE and NS6 main animation function
	for (i = 0; i < no; ++ i) {  // iterate for every dot
		yp[i] += sty[i];
		if (yp[i] > doc_height-img_height) {
			xp[i] = Math.random()*(doc_width-am[i]-img_width);
			yp[i] = 0;
			stx[i] = 0.02 + Math.random()/10;
			sty[i] = 1.2 + Math.random();
			doc_width = ns6up?window.innerWidth : document.body.clientWidth;
			doc_height = ns6up?window.innerHeight : document.body.clientHeight;
		}
		dx[i] += stx[i];
		if (ie4up){
			document.all["dot"+i].style.pixelTop = yp[i];
			document.all["dot"+i].style.pixelLeft = xp[i] + am[i]*Math.sin(dx[i]);
		} else if (ns6up){
			document.getElementById("dot"+i).style.top=yp[i];
			document.getElementById("dot"+i).style.left=xp[i] + am[i]*Math.sin(dx[i]);
		}
	}
	setTimeout("snowIE_NS6()", 10);
}

function rain()
{
	if (ns4up||ns6up) {
		doc_width = self.innerWidth;
		doc_height = self.innerHeight;
	} else if (ie4up) {
		doc_width = document.body.clientWidth;
		doc_height = document.body.clientHeight;
	}

	dx = new Array();
	xp = new Array();
	yp = new Array();
	am = new Array();
	stx = new Array();
	sty = new Array();

	for (i = 0; i < no; ++ i) {
		dx[i] = 0;                        // set coordinate variables
		xp[i] = Math.random()*(doc_width-60);  // set position variables
		yp[i] = Math.random()*doc_height;
		am[i] = Math.random()*25;         // set amplitude variables
		stx[i] = 0.02 + Math.random()/10; // set step variables
		sty[i] = 1.2 + Math.random();     // set step variables
		if (ns4up) {                      // set layers
//			if (i == 0) {
//				document.write("<layer name=\"dot"+ i +"\" left=\"15\" top=\"15\" visibility=\"show\"><a href=\"http://trrs.org/\"><img src='"+snowsrc+"' border=\"0\"></a></layer>");
//			} else {
				document.write("<layer name=\"dot"+ i +"\" left=\"15\" top=\"15\" visibility=\"show\"><img src='"+snowsrc+"' border=\"0\"></layer>");
//			}
		} else if (ie4up||ns6up) {
//			if (i == 0) {
//				document.write("<div id=\"dot"+ i +"\" style=\"POSITION: absolute; Z-INDEX: "+ i +"; VISIBILITY: visible; TOP: 15px; LEFT: 15px;\"><a href=\"http://trrs.org/\"><img src='"+snowsrc+"' border=\"0\"></a></div>");
//			} else {
				document.write("<div id=\"dot"+ i +"\" style=\"POSITION: absolute; Z-INDEX: "+ i +"; VISIBILITY: visible; TOP: 15px; LEFT: 15px;\"><img src='"+snowsrc+"' border=\"0\"></div>");
//			}
		}
	}
	if (ns4up) {
		snowNS();
	} else if (ie4up||ns6up) {
		snowIE_NS6();
	}
}