jQuery tagCloud random font size

jQuery:
jQuery(document).ready(function(){
function setFontSize() {
var maxFontSize = 20;
var fontSize = Math.floor(Math.random() * maxFontSize + 14) + 'px';
return fontSize;
}
jQuery('.BlogTagCloud a').each(function() {
var a = $(this);
var cssFontSize = setFontSize();
a.css({fontSize: cssFontSize});
});
});

css:
.BlogTagCloud{
width:300px;
}
.BlogTagCloud a{
text-decoration:none;
font-family:tahoma;
color:#1a1a1a;
}

html:
<div class="BlogTagCloud ">
<a href="#">Lorem </a><a href="#">sit </a>
<a href="#">dolor </a><a href="#">consectetur </a>
<a href="#">ipsum </a><a href="#">amet</a>
<a href="#">aliquip </a><a href="#">laboris </a>
<a href="#">fugiat </a><a href="#">occaecat </a>
and so on.....
</div>

jQuery Loading

jQuery:
jQuery(window).load(function() {
jQuery("#welcome").fadeOut('fast');
});

css:
#welcome{
width:100%;
height:100%;
z-index:15;
position:fixed;
top:0;
left:0;
background:url("../images/loading3.gif") no-repeat center #ffffff;
opacity:0.8;
filter: alpha(opacity = 80);
}

html:
<div id="welcome"></div>

jQuery GET

jQuery:
function getQuerystring(key, default_)
{
if (default_==null) default_="";
key = key.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
var regex = new RegExp("[\\?&amp;]"+key+"=([^&amp;#]*)");
var qs = regex.exec(window.location.href);
if(qs == null)
return default_;
else
return qs[1];
}
var author_value = getQuerystring('author');

function changetoSpace($str){
$str= $str.replace("%20"," ");
return $str;
}

var a=unescape(author_value);

URL:
http://test.com?author=reyneil

OUTPUT:
reyneil