Trying to complete a script that will make a pdf of the output that it pulls from mysql database.

What happens is when someone puts a model into the form (index.php) it displays data about the model in the "specs" div (getspecs.php). I need a button that'll make a pdf of everything in the "specs" div.

I've looked at verious pdf making methods, the problem is I can't figure out where to put the code in the script or the proper syntax to use.

I just need somene familiar with this to recommend a pdf making solution and where to insert the code and the proper syntax to use to provide a button that will "create a pdf". PM if you need to see a live version. I'm on a linux server.

index.php
Code:
<?php
ob_start();
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
	<head>
	<title>Product Specs PDF Maker - v1.0</title>
	<link rel="stylesheet" href="styles/style.css" type="text/css">
		<script type="text/javascript">
			function getSpecs(str)	{
				if (str=="")  {
					document.getElementById("txtHint").innerHTML="";
					return;
				}
				if (window.XMLHttpRequest) {
					// code for IE7+, Firefox, Chrome, Opera, Safari
					xmlhttp=new XMLHttpRequest();
				}
				else {
					// code for IE6, IE5
					xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
				}
				xmlhttp.onreadystatechange=function() {
					if (xmlhttp.readyState==4 && xmlhttp.status==200) {
						document.getElementById("getSpecs").innerHTML=xmlhttp.responseText;
					}
				}
				xmlhttp.open("GET","getspecs.php?model="+str,true);
				xmlhttp.send();
			}
		</script>
		<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
	</head>
	<body>
		<div id="header">
				<div id="form">
					<form onsubmit="return false;">
						<b>Model#:</b> <input onkeyup="getSpecs(this.value)" />
					<input type="submit" value="Submit"/>
					</form>
				</div>		
		</div>
		<br />
		<div id="getSpecs">
			<div id="info">Product info listed here.</div>
		</div>
	</body>
</html>

<?php
	$HtmlCode= ob_get_contents(); 
	ob_end_flush();
?>
getspecs.php
Code:
<?php
require_once("pdf/dompdf/dompdf_config.inc.php");
?>

<?php
// table row is not echoed if value is NULL
// table variable is not echoed if it is NULL
	include ('link.php');
	$model = str_replace(" ","",trim($_GET["model"]));
	$result = mysql_query("select * from test_table where model ='$model'");
	if ($row = mysql_fetch_object($result)) {
		if ($row->model)
				echo '<div id="menu">';
				echo '</div>';
				echo '<div class="clear"></div>';
				echo '<div id="specs" name="specs">';
					echo '<div id="model">';
						echo '<span class="model">'. $row->model . '</span><br />';
						echo '<span class="description">' . $row->description . '</span><br />';
					echo '</div>';
					
					// Product Specifications
					echo '<div id="tables">';

					// Table 1
						echo '<h3>Table 1</h3><dl>';
						if ($row->table1_var1)
							echo '<dt>Variable 1</dt><dd>' . $row->table1_var1 . '</dd>';
						if ($row->table1_var2)
							echo '<dt>Variable 2</dt><dd>' . $row->table1_var2 . '</dd>';
						if ($row->table1_var3)
							echo '<dt>Variable 3</dt><dd>' . $row->table1_var3 . '</dd>';
						if ($row->table1_var4)
							echo '<dt>Variable 4</dt><dd>' . $row->table1_var4 . '</dd>';
						if ($row->table1_var5)
							echo '<dt>Variable 5</dt><dd>' . $row->table1_var5 . '</dd>';
						echo '</dl>';

					// Table 2
						echo '<h3>Table 2</h3><dl>';
						if ($row->table2_var1)
							echo '<dt>Variable 1</dt><dd>' . $row->table2_var1 . '</dd>';
						if ($row->table2_var2)
							echo '<dt>Variable 2</dt><dd>' . $row->table2_var2 . '</dd>';
						if ($row->table2_var3)
							echo '<dt>Variable 3</dt><dd>' . $row->table2_var3 . '</dd>';
						if ($row->table2_var4)
							echo '<dt>Variable 4</dt><dd>' . $row->table2_var4 . '</dd>';
						if ($row->table2_var5)
							echo '<dt>Variable 5</dt><dd>' . $row->table2_var5 . '</dd>';
						echo '</dl>';

					// Table 3
						echo '<h3>Table 3</h3><dl>';
						if ($row->table3_var1)
							echo '<dt>Variable 1</dt><dd>' . $row->table3_var1 . '</dd>';
						if ($row->table3_var2)
							echo '<dt>Variable 2</dt><dd>' . $row->table3_var2 . '</dd>';
						if ($row->table3_var3)
							echo '<dt>Variable 3</dt><dd>' . $row->table3_var3 . '</dd>';
						if ($row->table3_var4)
							echo '<dt>Variable 4</dt><dd>' . $row->table3_var4 . '</dd>';
						if ($row->table3_var5)
							echo '<dt>Variable 5</dt><dd>' . $row->table3_var5 . '</dd>';
						echo '</dl>';

					echo '</dl>';

					echo '</div>';

					echo '<div id="product_img1">';
					if ($row->product_img1)
						echo '<img src="/images/products/' . $row->product_img1 . '" />'; 
					echo '</div>';
					echo '<div class="clear"></div>';

					echo '<div id="product_img2">';
					if ($row->product_img2)
					 	echo '<img src="/images/products/' . $row->product_img2 . '" />'; 
					echo '</div>';
					echo '<div class="clear"></div>';

					echo '<div id="product_notes">';
					if ($row->product_notes)
						echo  $row->product_notes ; 
					echo '</div>';

					echo '<input type="submit" name="submit" id=submit" value="Create PDF" class="pdfgen" />';
					echo '</form>';

					echo '<div class="clear"></div>';
			echo '</div>';
		}
	else echo '<div id="info">Product not found. <a href='.$url.'>Create new product?</a></div>';
	mysql_free_result($result);
?>