Dynamic Float top positions

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript">

$(document).ready(function() {

counter = $("#container > div").size(); // count total immidiate children of container
columns = 3;

leftpos = 0;
var myarray = [];
var temp = [];
temp[0] =temp[1] = temp[2] =0;
j=0;

for(i=1;i<=counter;i++)
{

width = $("#div"+i).width();

$("#div"+i).css('left',leftpos+'px');
$("#div"+i).css('top',temp[j]+'px');

$("#div"+i).css('display','block');

leftpos = leftpos + width;
myarray[j] = $("#div"+i).height();

temp[j] = temp[j] + myarray[j]

j++;
if(i%columns==0) {leftpos =0; var myarray = []; j=0;}

}// end of for loop

});
</script>

<style type="text/css">
#container{ width:900px; position:relative;}
.divs { width:300px; float:left; display:none; position:absolute; border:#000 1px solid;}
</style>

<div id="container">
<div id="div1">
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</div>
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</div>

Add a user on Ubunto Server

Ubuntu Server is like any Linux variety, and has full multi-user capabilities, and a common task on any server is adding users.

useradd

The useradd command will let you add a new user easily from the command line:

useradd <username>

This command adds the user, but without any extra options your user won’t have a password or a home directory.
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