// JavaScript Document

function get_part(cat){
	//erstellen des requests
	var req 		= null;
	var uri			= "";

	try{
		req = new XMLHttpRequest();
	}
	catch (ms){
		try{
			req = new ActiveXObject("Msxml2.XMLHTTP");
		} 
		catch (nonms){
			try{
				req = new ActiveXObject("Microsoft.XMLHTTP");
			} 
			catch (failed){
				req = null;
			}
		}  
	}

	if (req == null)
		  alert("Error creating request object!");
		  
	//anfrage erstellen (GET, url ist localhost,request ist asynchron)
	
	/*val = document.getElementById('part').value;*/
	uri		 = 'http://www.hotel-jaegerhof-mayen.de/content/'+cat+'.htm'
	req.open("GET", uri, true);
	bg_image = 'images/'+cat+'.jpg';
	//bg_image = 'images/'+cat+'.png';
	
	//Beim abschliessen des request wird diese Funktion ausgeführt
	req.onreadystatechange = function(){            
		switch(req.readyState) {
				case 4:
					if(req.status!=200) {
						alert("Fehler:"+req.status); 
					}else{    
						//alert(req.responseText);
						//schreibe die antwort in den div container mit der id ajax_part 
						document.getElementById('content').style.backgroundImage 	= "url("+bg_image+")";	
						document.getElementById('content').innerHTML 				= req.responseText;	
					}
					break;		
				default:
					return false;
					break;     
			}
		};

	req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	req.send(null);
}