Snow Script

RogerB · December 1, 2012

It's that time of year again so I thought I would share a script I found last year. Really easy to use.

<!--Simply copy and paste into <BODY> 
	 Just above the </BODY> tag. -->
<script type="text/javascript">
/*
Snow Fall 1 - no images - Java Script
Visit http://rainbow.arch.scriptmania.com/scripts/
 for this script and many more
*/
// 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","#f3f3f3","#f0ffff")
// Set the fonts, that create the snowflakes. Add as many fonts as you like
var snowtype=new Array("Times","Arial","Times","Verdana")
// 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 maximum-size of your snowflakes
var snowmaxsize=30
// Set the minimal-size of your snowflakes
var snowminsize=8
// 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 randommaker(range) {
		    rand=Math.floor(range*Math.random())
    return rand
}
function initsnow() {
		    if (ie5 || opera) {
						    marginbottom = document.body.scrollHeight
						    marginright = document.body.clientWidth-15
		    }
		    else if (ns6) {
						    marginbottom = document.body.scrollHeight
						    marginright = window.innerWidth-15
		    }
		    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+'px';
						    snow[i].style.color=snowcolor[randommaker(snowcolor.length)]
						    snow[i].style.zIndex=1000
						    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+'px';
						    snow[i].style.top=snow[i].posy+'px';
		    }
		    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])+'px';
						    snow[i].style.top=snow[i].posy+'px';
						    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
}
</SCRIPT>

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Snow Script

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