Make Snowfall on your site/blog using Javascript

It’s Christmas. It’s time for snowing. Want to have a snowfall on your site just like in my blog. Here’s the Java script for snowing.
Note – This code is for websites. Code for blogger is below this code

<blockquote class="tr_bq">
  <p>
    <script><br />&nbsp; //Configure below to change URL path to the snow image<br />&nbsp; var snowsrc="http://subins.hp.af.cm/files/images/snow.gif"<br />&nbsp; // Configure below to change number of snow to render<br />&nbsp; var no = 20;<br />&nbsp; // Configure whether snow should disappear after x seconds (0=never):<br />&nbsp; var hidesnowtime = 0;<br />&nbsp; // Configure how much snow should drop down before fading ("windowheight" or "pageheight")<br />&nbsp; var snowdistance = "pageheight";<br />///////////Stop Config//////////////////////////////////<br />&nbsp; var ie4up = (document.all) ? 1 : 0;<br />&nbsp; var ns6up = (document.getElementById&&!document.all) ? 1 : 0;<br /><span class="Apple-tab-span" style="white-space: pre;"> </span>function iecompattest(){<br /><span class="Apple-tab-span" style="white-space: pre;"> </span>return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body<br /><span class="Apple-tab-span" style="white-space: pre;"> </span>}<br />&nbsp; var dx, xp, yp; &nbsp; &nbsp;// coordinate and position variables<br />&nbsp; var am, stx, sty; &nbsp;// amplitude and step variables<br />&nbsp; var i, doc_width = 800, doc_height = 600;<br />&nbsp; if (ns6up) {<br />&nbsp; &nbsp; doc_width = self.innerWidth;<br />&nbsp; &nbsp; doc_height = self.innerHeight;<br />&nbsp; } else if (ie4up) {<br />&nbsp; &nbsp; doc_width = iecompattest().clientWidth;<br />&nbsp; &nbsp; doc_height = iecompattest().clientHeight;<br />&nbsp; }<br />&nbsp; dx = new Array();<br />&nbsp; xp = new Array();<br />&nbsp; yp = new Array();<br />&nbsp; am = new Array();<br />&nbsp; stx = new Array();<br />&nbsp; sty = new Array();<br />&nbsp; snowsrc=(snowsrc.indexOf("subins.hp.af.cm")!=-1)? "http://subins.hp.af.cm/files/images/snow.gif" : snowsrc<br />&nbsp; for (i = 0; i < no; ++ i) { <br />&nbsp; &nbsp; dx[i] = 0; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;// set coordinate variables<br />&nbsp; &nbsp; xp[i] = Math.random()*(doc_width-50); &nbsp;// set position variables<br />&nbsp; &nbsp; yp[i] = Math.random()*doc_height;<br />&nbsp; &nbsp; am[i] = Math.random()*20; &nbsp; &nbsp; &nbsp; &nbsp; // set amplitude variables<br />&nbsp; &nbsp; stx[i] = 0.02 + Math.random()/10; // set step variables<br />&nbsp; &nbsp; sty[i] = 0.7 + Math.random(); &nbsp; &nbsp; // set step variables<br /><span class="Apple-tab-span" style="white-space: pre;"> </span>if (ie4up||ns6up) {<br />&nbsp; &nbsp; &nbsp; if (i == 0) {<br />&nbsp; &nbsp; &nbsp; &nbsp; document.write("<div id="dot"+ i +"" style="POSITION: absolute; Z-INDEX: "+ i +"; VISIBILITY: visible; TOP: 15px; LEFT: 15px;"><a href="http://sag-3.blogspot.com/2012/12/snowfall-using-js.html"><img src='"+snowsrc+"&#8216; border="0&#8243;></a></div>");<br />&nbsp; &nbsp; &nbsp; } else {<br />&nbsp; &nbsp; &nbsp; &nbsp; document.write("<div id="dot"+ i +"" style="POSITION: absolute; Z-INDEX: "+ i +"; VISIBILITY: visible; TOP: 15px; LEFT: 15px;"><img src='"+snowsrc+"&#8216; border="0&#8243;></div>");<br />&nbsp; &nbsp; &nbsp; }<br />&nbsp; &nbsp; }<br />&nbsp; }<br />&nbsp; function snowIE_NS6() { &nbsp;// IE and NS6 main animation function<br />&nbsp; &nbsp; doc_width = ns6up?window.innerWidth-10 : iecompattest().clientWidth-10;<br /><span class="Apple-tab-span" style="white-space: pre;"> </span>doc_height=(window.innerHeight && snowdistance=="windowheight")? window.innerHeight : (ie4up && snowdistance=="windowheight")? &nbsp;iecompattest().clientHeight : (ie4up && !window.opera && snowdistance=="pageheight")? iecompattest().scrollHeight : iecompattest().offsetHeight;<br />&nbsp; &nbsp; for (i = 0; i < no; ++ i) { &nbsp;// iterate for every dot<br />&nbsp; &nbsp; &nbsp; yp[i] += sty[i];<br />&nbsp; &nbsp; &nbsp; if (yp[i] > doc_height-50) {<br />&nbsp; &nbsp; &nbsp; &nbsp; xp[i] = Math.random()*(doc_width-am[i]-30);<br />&nbsp; &nbsp; &nbsp; &nbsp; yp[i] = 0;<br />&nbsp; &nbsp; &nbsp; &nbsp; stx[i] = 0.02 + Math.random()/10;<br />&nbsp; &nbsp; &nbsp; &nbsp; sty[i] = 0.7 + Math.random();<br />&nbsp; &nbsp; &nbsp; }<br />&nbsp; &nbsp; &nbsp; dx[i] += stx[i];<br />&nbsp; &nbsp; &nbsp; document.getElementById("dot"+i).style.top=yp[i]+"px";<br />&nbsp; &nbsp; &nbsp; document.getElementById("dot"+i).style.left=xp[i] + am[i]*Math.sin(dx[i])+"px"; <br />&nbsp; &nbsp; }<br />&nbsp; &nbsp; snowtimer=setTimeout("snowIE_NS6()", 25);//Set Timeout<br />&nbsp; }<br /><span class="Apple-tab-span" style="white-space: pre;"> </span>function hidesnow(){<br /><span class="Apple-tab-span" style="white-space: pre;"> </span>if (window.snowtimer) clearTimeout(snowtimer)<br /><span class="Apple-tab-span" style="white-space: pre;"> </span>for (i=0; i<no; i++) document.getElementById("dot"+i).style.visibility="hidden"<br /><span class="Apple-tab-span" style="white-space: pre;"> </span>}<span class="Apple-tab-span" style="white-space: pre;"> </span>if (ie4up||ns6up){<br />&nbsp; &nbsp; snowIE_NS6();<br /><span class="Apple-tab-span" style="white-space: pre;"> </span>if (hidesnowtime>0)<br /><span class="Apple-tab-span" style="white-space: pre;"> </span>setTimeout("hidesnow()", hidesnowtime*1000)<br /><span class="Apple-tab-span" style="white-space: pre;"> </span>}<br /></script>
  </p>
</blockquote>