var snowmax = 70
var snowcolor = new Array("#AAAACC", "#DDDDFF", "#CCCCDD", "#F3F3F3", "#F0FFFF")
var snowtype = new Array("Arial Black", "Arial Narrow", "Times", "Comic Sans MS")
var snowletter = "*"
var sinkspeed = 1
var snowmaxsize = 50
var snowminsize = 10
var snowingzone = 1
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 randommaker(range) {
    rand = Math.floor(range * Math.random())
    return rand
}

function initsnow() {
    if (ie5 || opera) {
        marginbottom = document.body.clientHeight
        marginright = document.body.clientWidth
    }
    else if (ns6) {
        marginbottom = window.innerHeight
        marginright = window.innerWidth
    }
    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(2 * marginbottom - marginbottom - 2 * snow[i].size)
        snow[i].style.left = snow[i].posx
        snow[i].style.top = snow[i].posy
    }
    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 - 2 * 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)
}

for (i = 0; i <= snowmax; i++) {
    document.write("<span id='s" + i + "' style='position:absolute;top:-" + snowmaxsize + "'>" + snowletter + "</span>")
}
if (browserok) {
    window.onload = initsnow
}