var showpage = 0;

function loadShowPage(id) 
{
	if(id > -1 && id <13){showpage = id;}
	
	url = "show/demo"+showpage+".html";
	
	if (window.XMLHttpRequest)
	{
		// code for IE7+, Firefox, Chrome, Opera, Safari
	  	xmlhttp=new XMLHttpRequest();
	  	xmlhttp.open('GET',url,false);
	  	xmlhttp.send(null);
	}
	else
	{
		// code for IE6, IE5
	 	xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
	  	xmlhttp.open('GET',url,false);
	  	xmlhttp.send();
	}
	
	document.getElementById('hoe_content').innerHTML = xmlhttp.responseText;
	if(showpage != 0)
	{
		document.getElementById('hoe_navbalk').style.display = 'block';
		document.getElementById('navs').innerHTML = (showpage < 10 ? "&nbsp;&nbsp;" : "") + showpage + " van 12";
	}
	else
	{
		document.getElementById('hoe_navbalk').style.display = 'none';
	}		
}