changeDivHTML = function(tab_no){	
						var div = "secondNav";	
						
						//aktueller tab aktiv schalten
						document.getElementById("tab"+tab_no).style.backgroundPosition="0px 0px";
						document.getElementById("tab"+tab_no).style.color="#666666";
						
						//die anderen tabs deaktivieren
						for (var i=1;i<5;i++){
							if(i!==tab_no){
								document.getElementById("tab"+i).style.backgroundPosition="0px -23px";
								document.getElementById("tab"+i).style.color="#FFFFFF";							
								}
						}
						
						
						if (tab_no==1){	
						
						
						var text = 	"<div style=\"float:left;width:90%;padding:3px;border:solid 0px;margin-left:15px;\"><br/>"+
												"<p><b>Het gemak van automatisch plannen</b><br />Planning is iets waar u - letterlijk - niet te lang bij stil wilt staan. Het moet er gewoon zijn en optimaal werken. Het snel en effici&euml;nt kunnen plannen is voor uw bedrijf een primaire behoefte. U wilt het dan ook in &eacute;&eacute;n keer goed geregeld hebben. <br /><br /><b>Betrouwbare kwaliteit</b><br />Kies daarom voor PTV. D&eacute; betrouwbare leverancier van rit- en routeplanningssystemen, professionele navigatie en componenten waarmee u kosten bespaart en de kwaliteit van uw service nog meer verhoogt. Wilt u weten wat wij voor u kunnen betekenen? Meldt u dan direct online aan voor een gratis en vrijblijvend adviesgesprek. Wij komen graag bij u langs.</p>"+
												"</div>";												
														}
														
										else if (tab_no==2){
							
						var text = 	"<div style=\"float:left;width:30%;padding:5px;border:solid 0px;margin-right:6px;\"><h4>Media</h4>"+
												"<ul>"+
												"<li><a href=\"/index.php?id=2238\">Persberichten</a></li>"+
												"<li><a href=\"/index.php?id=2252\">Nieuwsbrief</a></li>"+
												"<li><a href=\"/index.php?id=2225\">Klanten magazine</a></li>"+
												"</ul></div>"+
												"<div style=\"float:left;width:30%;padding:5px;border:solid 0px;margin-right:6px;\"><h4>Beurzen en seminars</h4>"+
												"<ul>"+
												"<li><a href=\"/index.php?id=2226\">Alle events in een overzicht</a></li>"+
												"</ul></div>"+
												"<div style=\"float:left;width:30%;padding:5px;border:solid 0px;margin-right:6px;\"><h4>Vacatures</h4>"+
												"<ul>"+
												"<li><a href=\"/index.php?id=2215\">Openstaande vacatures</a></li>"+
												"</ul></div>";
											}
							
					
						
						else if (tab_no==3){
							
						var text = 
						"<div style=\"float:left;width:33%;padding:2px;border:solid 0px;margin-left:1px;\"><h4>Ritplanning</h4>"+
						"<ul>"+
						"<li><a href=\"/index.php?id=2176\">PTV Intertour</a></li>"+
						"<li><a href=\"/index.php?id=2177\">PTV Intertour/Live</a></li>"+
						"<li><a href=\"/index.php?id=2177\">PTV Intertour/Dispatch</a></li>"+
						"<li><a href=\"/index.php?id=2177\">PTV Intertour/Strategy</a></li>"+
						"<li><a href=\"/index.php?id=2177\">PTV Intertour/Maut</a></li>"+
						"</ul></div>"+
						"<div style=\"float:left;width:33%;padding:2px;border:solid 0px;margin-right:0px;\"><h4>Routeplanning<br>TLNplanner</h4>"+
						"<ul>"+
						"<li><a href=\"/index.php?id=2183\">TLNplanner DVD</a></li>"+					
						"<li><a href=\"/index.php?id=2184\">TLNplanner Internet</a></li>"+
						"<li><a href=\"/index.php?id=2185\">TLNplanner Intranet</a></li>"+
						"</ul>"+
						"<h4>mapandguide</h4>"+
						"<ul>"+
						"<li><a href=\"/index.php?id=2191\">Professional</a></li>"+
						"<li><a href=\"/index.php?id=2192\">Calculate</a></li>"+
						"<li><a href=\"/index.php?id=2193\">Intranet</a></li>"+		
						"</ul></div>"+
						"<div style=\"float:left;width:30%;padding:2px;border:solid 0px;margin-right:0px;\"><h4>Navigatie</h4>"+
						"<ul>"+
						"<li><a href=\"/index.php?id=2172\">fleet navigator</a></li>"+					
						"<li><a href=\"/index.php?id=2173\">truck navigator</a></li>"+
						"<li><a href=\"/index.php?id=2297\">Guided navigation</a></li>"+
						"</ul>"+
						"<h4>PTV Developer Components</h4>"+
						"<ul>"+
						"<li><a href=\"/index.php?id=2209\">PTV MapServer</a></li>"+
						"<li><a href=\"/index.php?id=2210\">PTV xServer</a></li>"+	
						"</ul></div>";							
							
							}
						
						else if (tab_no==4){
							
						var text = 
												
												"<div style=\"float:left;width:45%;padding:3px;border:solid 0px;margin-left:20px;\"><h4>Ritplanning</h4>"+
												"<ul>"+
												"<li><a href=\"/index.php?id=2203\">Netviewer</a></li>"+
												"</ul></div>"+						
												"<div style=\"float:left;width:40%;padding:3px;border:solid 0px;margin-left:40px;\"><h4>Routeplanning</h4>"+
												"<ul>"+
												"<li><a href=\"/index.php?id=2204\">FAQ</a></li>"+
												"<li><a href=\"/index.php?id=2205\">Updates</a></li>"+
												"<li><a href=\"/index.php?id=2206\">Netviewer</a></li>"+
												"<li><a href=\"/index.php?id=2358\">Pincode</a></li>"+
											  "</ul><ul>"+
												"</ul></div>";
							}			
										
						document.getElementById('tab1').className="";
						document.getElementById('tab2').className="";
						document.getElementById('tab3').className="";	
						document.getElementById('tab4').className="";
							
						document.getElementById(div).innerHTML=text;
						document.getElementById('tab'+tab_no).className="current";
						}
						
						
			
			
			
		changeAddHTML = function(div_no){	
					
						var div = "add";	
						
						
						if (div_no==1){	
							var text = 
							"<div id=\"addnav\"><b>Transportation planning / Traffic engineering</b><ul>"+
							"<li><a href=\"/index.php?id=1807\">Pedestrian simulation</a></li>"+
							"<li><a href=\"/index.php?id=1810\">Travel demand modelling</a></li>"+
							"<li><a href=\"/index.php?id=1794\">Public Transport</a></li>"+
							"<li><a href=\"/index.php?id=1793\">PTV Vision</a></li>"+
							"<li><a href=\"/index.php?id=1813\">Traffic models</a></li>"+
							"<li><a href=\"/index.php?id=1795\">Road safety</a></li>"+
							"<li><a href=\"/index.php?id=1801\">Traffic simulation</a></li>"+
							"</ul>";
						}	
						
						

						else if (div_no==2){	
							var text = 
							"<div id=\"addnav\"><b>Traffic management / ITS</b><ul>"+
							"<li><a href=\"/index.php?id=1521\">Mobility services</a></li>"+
							"<li><a href=\"/index.php?id=1532\">Telematics</a></li>"+
							"<li><a href=\"/index.php?id=1531\">Traffic condition</a></li>"+
							"</ul>";

						}	
						
						else if (div_no==3){	
							var text = 
							"<div id=\"addnav\"><b>Transport route planning</b><ul>"+
							"<li><a href=\"/index.php?id=1622\">CO2 emissions calculation</a></li>"+
							"<li><a href=\"/index.php?id=1622\">Distance calculation</a></li>"+
							"<li><a href=\"/index.php?id=1622\">HGV route planning</a></li>"+
							"<li><a href=\"/index.php?id=1622\">map&guide</a></li>"+
							"<li><a href=\"/index.php?id=1622\">Toll</a></li>"+
							"</ul>";

						}	
						
						else if (div_no==4){	
							var text = 
							"<div id=\"addnav\"><b>Trip planning and optimisation</b><ul>"+
							"<li><a href=\"/index.php?id=1623\">Automatic optimisation </a></li>"+
							"<li><a href=\"/index.php?id=1635\">Freight billing</a></li>"+
							"<li><a href=\"/index.php?id=1639\">Multi-depot planning</a></li>"+
							"<li><a href=\"/index.php?id=1639\">PTV Intertour</a></li>"+
							"<li><a href=\"/index.php?id=1636\">Master trip planning</a></li>"+
							"<li><a href=\"/index.php?id=1623\">Trip and vehicle scheduling</a></li>"+
							"</ul>";

						}	
						
						else if(div_no==5){	
												
							var text = 
							"<div id=\"addnav\"><b>Geomanagement & Sales Force Management</b><br><ul>"+
							"<li><a href=\"/index.php?id=1358\">Sales force optimisation</a></li>"+
							"<li><a href=\"/index.php?id=1358\">Sales route planning</a></li>"+
							"<li><a href=\"/index.php?id=1359\">Location planning, business expansion planning</a></li>"+
							"<li><a href=\"/index.php?id=1359\">Area planning</a></li>"+
							"<li><a href=\"/index.php?id=1351\">Geomarketing</a></li>"+
							"<li><a href=\"/index.php?id=1359\">Location planning</a></li>"+
							"<li><a href=\"/index.php?id=1356\">Distribution planning / household advertising</a></li>"+
							"</ul>";
						}
						
						else if(div_no==6){	
												
							var text = 
							"<div id=\"addnav\"><b>Developer Components</b><br/><ul>"+
							"<li><a href=\"/index.php?id=1376\">Address geocoding</a></li>"+
							"<li><a href=\"/index.php?id=1376\">Digital maps</a></li>"+
							"<li><a href=\"/index.php?id=1378\">Distance matrices</a></li>"+
							"<li><a href=\"/index.php?id=1376\">Integration with SAP</a></li>"+
							"<li><a href=\"/index.php?id=1376\">Toll calculation</a></li>"+
							"<li><a href=\"/index.php?id=1376\">Route calculation</a></li>"+
							"<li><a href=\"/index.php?id=1378\">Trip optimisation</a></li>"+
							"<li><a href=\"/index.php?id=1945\">Navigation solutions</a></li>"+							
							"</ul>";
						}
						
						
						else {
							var text="";	
						}		
						
								
						document.getElementById(div).innerHTML=text;		
						
					
											
						}