OSClass to wordpress plugin

Hi,

I have this code

<?php

/*
Plugin Name: Portugal Rollover Maps
Plugin URI: http://www.osclass.org/
Description: This Plugin displays a rollover map Portugal.
Version: 1.0
Author: 
Author URI: http://www.osclass.org/
Short Name: Portugalrollover
*/
function portugal_rollover_js() {
		
	?>
<!--rollover maps --!>
<script type="text/javascript" src="<?php echo osc_base_url() . 'oc-content/plugins/rollover_maps/js/mapa.js'; ?>"></script>
<link href="<?php echo osc_base_url() . 'oc-content/plugins/rollover_maps/css/mapa.css'; ?>" rel="stylesheet" type="text/css" />
	<?php	
}

function display_portugal_map() {
	
	?>
<div id="h_main">
    <div id="h_portugal"> 
	<div class="Port">Selecionar no mapa</div> 
        <div class="Map">
            <div id="region_map"> 
                <img src="<?php echo osc_current_web_theme_url('images/transparent.gif') ; ?>" height="252" width="196" title="Clique numa regi&#227;o para ver os an&#250;ncios!" alt="Clique numa regi&#227;o para ver os an&#250;ncios!" usemap="#PortugalMap" /> 
            </div> 
        </div> 
    </div> 
</div> 

<map id="portugal_map" name="PortugalMap"> 
	<area shape="poly" alt="Viana do Castelo" title="Viana do Castelo" onmouseover="change_image(1);" onmouseout="hide_image(1);" href="<?php echo osc_base_url(); ?>index.php?page=search&sPattern=&sCity=Viana do Castelo" coords="120,0,121,4,125,4,120,11,122,15,111,19,108,25,105,23,99,26,99,23,97,20,98,14,108,5,114,3,116,4,119,3" /> 
	<area shape="poly" alt="Madeira" title="Madeira" onmouseover="change_image(20);" onmouseout="hide_image(20);" href="<?php echo osc_base_url(); ?>index.php?page=search&sPattern=&sCity=Madeira" coords="68,208,70,216,61,238,41,242,23,232,25,225,39,227,49,224,54,211" /> 	
</map>

	<?php
}

// This is needed in order to be able to activate the plugin
osc_register_plugin(osc_plugin_path(__FILE__), '');
// This is a hack to show a Uninstall link at plugins table (you could also use some other hook to show a custom option panel)
osc_add_hook(osc_plugin_path(__FILE__) . '_uninstall', '');
//Header
osc_add_hook('header', 'portugal_rollover_js');
?>

Code (markup):

It is possible change it to works in wordpress?

Thank you for your help,
RAN