Snow Fall Effect on Web Page

Here Javascript Code For Snow Fall effect on a Web Page.

<script type="text/javascript">

   
        //Configure below to change URL path to the snow image
        var snowsrc = "snow.gif"
        // Configure below to change number of snow to render
        var no = 10;
        // Configure whether snow should disappear after x seconds (0=never):
        var hidesnowtime = 0;
        // Configure how much snow should drop down before fading ("windowheight" or "pageheight")
        var snowdistance = "pageheight";

        ///////////Stop Config//////////////////////////////////

        var ie4up = (document.all) ? 1 : 0;
        var ns6up = (document.getElementById && !document.all) ? 1 : 0;

        function iecompattest() {
            return (document.compatMode && document.compatMode != "BackCompat") ? document.documentElement : document.body
        }

        var dx, xp, yp;    // coordinate and position variables
        var am, stx, sty;  // amplitude and step variables
        var i, doc_width = 800, doc_height = 600;

        if (ns6up) {
            doc_width = self.innerWidth;
            doc_height = self.innerHeight;
        } else if (ie4up) {
            doc_width = iecompattest().clientWidth;
            doc_height = iecompattest().clientHeight;
        }

        dx = new Array();
        xp = new Array();
        yp = new Array();
        am = new Array();
        stx = new Array();
        sty = new Array();
        snowsrc = (snowsrc.indexOf("dynamicdrive.com") != -1) ? "snow.gif" : snowsrc
        for (i = 0; i < no; ++i) {
            dx[i] = 0;                        // set coordinate variables
            xp[i] = Math.random() * (doc_width - 50);  // 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
            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://dynamicdrive.com\"><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>");
                }
            }
        }

        function snowIE_NS6() {  // IE and NS6 main animation function
            doc_width = ns6up ? window.innerWidth - 10 : iecompattest().clientWidth - 10;
            doc_height = (window.innerHeight && snowdistance == "windowheight") ? window.innerHeight : (ie4up && snowdistance == "windowheight") ? iecompattest().clientHeight : (ie4up && !window.opera && snowdistance == "pageheight") ? iecompattest().scrollHeight : iecompattest().offsetHeight;
            for (i = 0; i < no; ++i) {  // iterate for every dot
                yp[i] += sty[i];
                if (yp[i] > doc_height - 50) {
                    xp[i] = Math.random() * (doc_width - am[i] - 30);
                    yp[i] = 0;
                    stx[i] = 0.02 + Math.random() / 10;
                    sty[i] = 0.7 + Math.random();
                }
                dx[i] += stx[i];
                document.getElementById("dot" + i).style.top = yp[i] + "px";
                document.getElementById("dot" + i).style.left = xp[i] + am[i] * Math.sin(dx[i]) + "px";
            }
            snowtimer = setTimeout("snowIE_NS6()", 10);
        }

        function hidesnow() {
            if (window.snowtimer) clearTimeout(snowtimer)
            for (i = 0; i < no; i++) document.getElementById("dot" + i).style.visibility = "hidden"
        }


        if (ie4up || ns6up) {
            snowIE_NS6();
            if (hidesnowtime > 0)
                setTimeout("hidesnow()", hidesnowtime * 1000)
        }

</script>

save above image place in your plage