nav_menu_1 = "<table width=780 border=0 cellspacing=0>\n";
nav_menu_2 = "<tr>\n";
nav_menu_3 = "<td background=./img/gif/button_menu.gif height=20 width=130 align=center valign=middle onmouseover=\"this.className='selected_menu'\" onmouseout=\"this.className='normal'\"><a class=menu href=index.php><b>HOME</b></a></td>\n";
nav_menu_4 = "<td background=./img/gif/button_menu.gif height=20 width=130 align=center valign=middle onmouseover=\"this.className='selected_menu'\" onmouseout=\"this.className='normal'\"><a class=menu href=index.php?page=azienda><b>AZIENDA</b></a></td>\n";
nav_menu_5 = "<td background=./img/gif/button_menu.gif height=20 width=130 align=center valign=middle onmouseover=\"this.className='selected_menu'\" onmouseout=\"this.className='normal'\"><a class=menu href=index.php?page=prodotti><b>PRODOTTI</b></a></td>\n";
nav_menu_6 = "<td background=./img/gif/button_menu.gif height=20 width=130 align=center valign=middle onmouseover=\"this.className='selected_menu'\" onmouseout=\"this.className='normal'\"><a class=menu href=index.php?page=realizzazioni><b>REALIZZAZIONI</b></a></td>\n";
nav_menu_7 = "<td background=./img/gif/button_menu.gif height=20 width=130 align=center valign=middle onmouseover=\"this.className='selected_menu'\" onmouseout=\"this.className='normal'\"><a class=menu href=index.php?page=mappa><b>DOVE SIAMO</b></a></td>\n";
nav_menu_8 = "<td background=./img/gif/button_menu.gif height=20 width=130 align=center valign=middle onmouseover=\"this.className='selected_menu'\" onmouseout=\"this.className='normal'\"><a class=menu href=index.php?page=contatti><b>CONTATTI</b></a></td>\n";
nav_menu_9 = "</tr >\n";
nav_menu_10 = "</table>\n";

document.write(nav_menu_1, nav_menu_2, nav_menu_3, nav_menu_4, nav_menu_5, nav_menu_6, nav_menu_7, nav_menu_8, nav_menu_9, nav_menu_10);