• простота организации (у нас нет проблем с блокировками и синхронизацией);
• всю рутину за нас выполняет операционная система;
• большое количество процессов требует большого количества ресурсов;
• нет возможности динамически управлять процессом.

#!/usr/bin/perl -w
use strict;
use POE;

for (1..10) {
	POE::Session->create(
		'inline_states' => {
			'_start'    => sub {
				print "Session ", $_[SESSION]->ID, " has started.\n";
				$_[HEAP]->{'count'} = 0;
				$_[KERNEL]->yield('increment');
			},
			'increment' => sub {
				print "Session ", $_[SESSION]->ID, " counted to ", ++$_[HEAP]->{'count'}, ".\n";
				$_[KERNEL]->yield('increment') if $_[HEAP]->{'count'} < 10;
			},
			'_stop'     => sub {
				print "Session ", $_[SESSION]->ID, " has stopped.\n";
			},
		}
	);
}

POE::Kernel->run;

div.fileinputs {
	position: relative;
	left:0;
}

div.fakebtn {
	position: absolute;
	top: 0px;
	left: 10px;
	z-index: 1;
}

input.file {
	position: absolute;
	top: 0px;
	left: 20px;
	z-index: 3;
}

<div class="fileinputs">
	<input type="file" class="file" />
	<div class="fakebtn">
		<img src="http://gorinich.net/direct/imgs/issues/browse_button.gif" alt="" />
	</div>
</div>

input.fakefile {
	position: relative;
	-moz-opacity:0 ;
	filter:alpha(opacity: 0);
	opacity: 0;
	z-index: 3;
}

<div class="fileinputs">
	<input type="file" class="fakefile" />
	<div class="fakebtn">
		<img src="http://gorinich.net/direct/imgs/issues/browse_button.gif" alt="" />
	</div>
</div>

div.faketext {
	position: absolute;
	top: 0px;
	left: 20px;
	z-index: 5;
}

<div class="fileinputs">
	<input type="file" class="fakefile" />
	<div class="faketext">
		<input name="filename1" type='text' />
	</div>
	<div class="fakebtn">
		<img src="http://gorinich.net/direct/imgs/issues/browse_button.gif" alt="" />
	</div>
</div>

input.browsetext {
 background: transparent;
 height: 17px;
 width: 120px;
 font-family: Verdana;
 font-size: 9px;
 border: none;
 color: #000000;
}

<form name="uploadfiles">
<div class="fileinputs">
	<input type="file" class="fakefile" onchange='document.forms["uploadfiles"].
elements["filename"].value=this.value' />
	<div class="faketext">
		<input name="filename" type="text" class="browsetext" readonly />
	</div>
	<div class="fakebtn">
		<img src="http://gorinich.net/direct/imgs/issues/browse_button.gif" alt="" />
	</div>
</div>
</form>