var xmlHttp

function rating(value){ 
	var image_id = document.getElementById("image_id").value;
	var rating = value;
    if(rating != parseInt(rating) || rating < 1 || rating > 10){
		document.getElementById("actionResult").innerHTML="<span style=\"color:red\">Rating must be 1 to 10</span>";
		return;
	}

	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null){
		alert ("Browser does not support HTTP Request")
		return
	} 
	try{
		var url="/postRating.php"
		url=url+"?image_id="+image_id+"&rating="+rating;
		xmlHttp.onreadystatechange=ratingState 
		xmlHttp.open("GET",url,true)
		xmlHttp.send(null)
	}
	catch(e){
		document.getElementById("actionResult").innerHTML="<span style=\"color:red\">Error: " + e + "</span>";
	}
}

function favorite_add(){
	var image_id = document.getElementById("image_id").value;
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null){
		alert ("Browser does not support HTTP Request")
		return
	} 
	try{
		var url="/favoriteAction.php"
		url=url+"?image_id="+image_id+"&action=add";
		xmlHttp.onreadystatechange=favoriteStateAdd 
		xmlHttp.open("GET",url,true)
		xmlHttp.send(null)
	}
	catch(e){
		document.getElementById("actionResult").innerHTML="<span style=\"color:red\">Error: " + e + "</span>";
	}
}

function favorite_delete(){
	var image_id = document.getElementById("image_id").value;
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null){
		alert ("Browser does not support HTTP Request")
		return
	} 
	try{
		var url="/favoriteAction.php"
		url=url+"?image_id="+image_id+"&action=delete";
		xmlHttp.onreadystatechange=favoriteStateDelete
		xmlHttp.open("GET",url,true)
		xmlHttp.send(null)
	}
	catch(e){
		document.getElementById("actionResult").innerHTML="<span style=\"color:red\">Error: " + e + "</span>";
	}
}

function add_tag(){
	var image_id = document.getElementById("image_id").value;
	var tag = document.getElementById("tag").value;
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null){
		alert ("Browser does not support HTTP Request")
		return
	} 
	try{
		var url="/addTag.php"
		url=url+"?image_id="+image_id+"&tag="+tag
		xmlHttp.onreadystatechange=taggingState
		xmlHttp.open("GET",url,true)
		xmlHttp.send(null)
	}
	catch(e){
		document.getElementById("actionResult").innerHTML="<span style=\"color:red\">Error: " + e + "</span>";
	}
}


function updateRating(){
	$('avgRatingValue').innerHTML = $('newAvgRating').innerHTML;
	$('rateImageValue').innerHTML = $('newRateImageValue').innerHTML;
}
function updateTags(){
	var output = document.getElementById("newTagSection").innerHTML;
	document.getElementById("tagSection").innerHTML = output;
	document.getElementById("imageTagBox").style.display = 'none';
	document.getElementById("tag").value = "";
}

function updateFavoriteAdded(){
	var output = '<div class="imageActionBox" style="background: url(http://www.theanimegallery.com/img/icons/favourite_remove.png) 0 0px no-repeat;">';
	output+= '<a href="#" onclick="favorite_delete();">Remove from favs</a></div>';
	document.getElementById("favoriteAction").innerHTML = output;
}

function updateFavoriteDeleted(){
	var output = '<div class="imageActionBox" style="background: url(http://www.theanimegallery.com/img/icons/favourite_add.png) 0 0px no-repeat;">';
	output+= '<a href="#" onclick="favorite_add();">Add to favorites</a></div>';
	document.getElementById("favoriteAction").innerHTML = output;
}

function favoriteStateAdd() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){ 
		document.getElementById("actionResult").innerHTML=xmlHttp.responseText;
		if(xmlHttp.responseText.indexOf("Success") >= 0){updateFavoriteAdded();}
	}
	else{
		document.getElementById("actionResult").innerHTML="Performing actions ..."
	}
}

function favoriteStateDelete() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){ 
		document.getElementById("actionResult").innerHTML=xmlHttp.responseText;
		if(xmlHttp.responseText.indexOf("Success") >= 0){updateFavoriteDeleted();}
	}
	else{
		document.getElementById("actionResult").innerHTML="Performing actions ..."
	}
}

function ratingState() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){ 
		document.getElementById("actionResult").innerHTML=xmlHttp.responseText;
		if(xmlHttp.responseText.indexOf("Success") >= 0){updateRating();}
	}
	else{
		document.getElementById("actionResult").innerHTML="Posting rating ..."
	}
}

function taggingState() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){ 
		document.getElementById("actionResult").innerHTML=xmlHttp.responseText;
		if(xmlHttp.responseText.indexOf("Success") >= 0){updateTags();}
	}
	else{
		document.getElementById("actionResult").innerHTML="Adding new tag ..."
	}
}

function GetXmlHttpObject()
{
	var xmlHttp=null;
	try{
		// Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
	}
	catch (e){
		//Internet Explorer
		try{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e){
			xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	return xmlHttp;
}