/*
 * Event Calendar - generates event calendar
 *
 * Copyright (c) 2008 Regie Ebalobor and Odysseylive Team (odysseylive.net)
 *
 * $Date: 2008-01-04
 */
 
var req;

function navigate(month,year) {
	var url = "events_calendar_ajax.php?month="+month+"&year="+year;
	if(window.XMLHttpRequest) {
		req = new XMLHttpRequest();
	} else if(window.ActiveXObject) {
		req = new ActiveXObject("Microsoft.XMLHTTP");
	}
	req.open("GET", url, true);				
	req.onreadystatechange = callback;				
	req.send(null);
}

function callback() {        
	obj = document.getElementById("calendar_display");
	setFadingEffects(0);
        
	if(req.readyState == 4) {					
		if(req.status == 200) {										
			response = req.responseText;												
			//obj.innerHTML = response;
			//alert("id="+document.getElementById("calendar_display").value);
			document.getElementById("calendar_display").innerHTML = response;
			fade(0);
		} else {
			alert("There was a problem retrieving the data:\n" + req.statusText);
		}
	}
}

function fade(amt) {
	if(amt <= 100) {
		setFadingEffects(amt);
		amt += 10;
		setTimeout("fade("+amt+")", 5);
    }
}

function setFadingEffects(amt) {
	obj = document.getElementById("calendar_display");
	
	amt = (amt == 100)?99.999:amt;
  
	// IE
	//obj.style.filter = "alpha(opacity:"+amt+")";
  
	// Safari<1.2, Konqueror
	//obj.style.KHTMLOpacity = amt/100;
  
	// Mozilla and Firefox
	//obj.style.MozOpacity = amt/100;
  
	// Safari 1.2, newer Firefox and Mozilla, CSS3
	obj.style.opacity = amt/100;

}