affiancare campo testo e submit

[produ]

Ciao non riesco ad affiacare il campo testo, con il tasto submit..
non capisco perke??
questo è il codice..

* {
	font: 12px Verdana, Arial, Helvetica, sans-serif;
	}
	body{ 
		background-image: url('immagini/home.jpg');
		background-color: #FFFFFF;
		background-position: center top ;
		background-repeat: no-repeat;
	}
	#container{
		margin:0 auto;
		width:760px;
		height:100%;
		overflow:hidden;
	}
	#login{
		margin-right:20px;
		margin-top:520px;
		float:right;
		width:153px;
		height:33px;
	}
	#mytext {
		color: #000000;
		margin-top:228px;
		margin-left:180px;
		border: 1px solid #000000;
		background: #F9EB98;
		width: 400px;
    }
	#mysubmit {
		color: #000000;
		border: 1px solid #000000;
		width: 70px;
		margin-left: 600px;
		margin-top:0px;
		font-size: 12px;
		text-align:center;
	}

<div id="container">
<div id="form">
	<form name="myform" method="get" id="myform" class="myform" action="home2.php" onsubmit="return controlla();">
		<input type="text" name="mytext" id="mytext" class="mytext" onkeyup="ajax_showOptions(this,'getCountriesByLetters',event)"> 		<input type="submit"  name="mysubmit" id="mysubmit" class="mysubmit" value="ricerca">
	</form>
	</div>
	<div id="advsearch">
	Ricerca Avanzata
	</div>
	
<? if (isset($_SESSION['username'])) {?>
		<div id="login">
			[img]immagini/logout.png[/img]
		</div>
<? }else{?>
		<div id="login">
			[img]immagini/login.png[/img]
		</div>
	<? } ?>
</div>

[fcaldera]

un modo possibile è flottare l'input text e il pulsante (entrambi a sinistra) e fare clearing sul form

[produ]

mm..ma al clear che valore dò..ho provato cosi..ma non va cmq..

input.mytext{
		color: #000000;
		margin-top:228px;
		margin-left:180px;
		border: 1px solid #000000;
		background: #F9EB98;
		width: 400px;
		float:left;
	}

	#mysubmit {
		color: #000000;
		border: 1px solid #000000;
		width: 70px;
		margin-left: 600px;
		margin-top:0px;
		font-size: 12px;
		text-align:center;
		float:left;
	}
form{
	clear:left;
	}

<form name="myform" method="get" id="myform" class="myform" action="home2.php" onsubmit="return controlla();">
		<input type="text" name="mytext" id="mytext" class="mytext" > 		<input type="submit"  name="mysubmit" id="mysubmit" class="mysubmit" value="ricerca">
	</form>

[fcaldera]

un clearing non equivale ad usare solo clear: ...

http://www.positioniseverything.net/easyclearing.html
http://www.quirksmode.org/css/clearing.html

oppure cerca nel forum