/*
AV Arcade Pro front-end javascript functions

Author: Andy Venus
Rating stars rollover by Addam M. Driver

*/

var sMax;	// Isthe maximum number of stars
var holder; // Is the holding pattern for clicked state
var preSet; // Is the PreSet value onces a selection has been made
var rated;

// AJAX for all browsers
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;
}

// AJAX POST FUNCTION
function AjaxPost(url, param, success_function) {
	xmlHttp = GetXmlHttpObject();
    if (xmlHttp == null) {
        alert("Your browser doesn't support AJAX. You should upgrade it!")
        return
    }
    xmlHttp.onreadystatechange = success_function;
    xmlHttp.open("POST", url, true);
    xmlHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    xmlHttp.send(param);
}

function div(d) {
    return document.getElementById(d);
}

// Rollover for image Stars //
function rating(num){
	sMax = 0;	// Isthe maximum number of stars
	for(n=0; n<num.parentNode.childNodes.length; n++){
		if(num.parentNode.childNodes[n].nodeName == "A"){
			sMax++;	
		}
	}
	
	if(!rated){
		s = num.id.replace("_", ''); // Get the selected star
		a = 0;
		for(i=1; i<=sMax; i++){		
			if(i<=s){
				document.getElementById("_"+i).className = "on";
				holder = a+1;
				a++;
			}else{
				document.getElementById("_"+i).className = "";
			}
		}
	}
}

// For when you roll out of the the whole thing //
function off(me){
	if(!rated){
		if(!preSet){	
			for(i=1; i<=sMax; i++){		
				document.getElementById("_"+i).className = "";
			}
		}else{
			rating(preSet);
		}
	}
}

// When you actually rate something //
function rateIt(me, id, site_url){
	if(!rated){
		preSet = me;
		rated=1;
		sendRate(me, id, site_url);
		rating(me);
	}
}

// Send the rating information somewhere using Ajax or something like that
function sendRate(sel, id, site_url){
	AjaxPost(site_url+"/includes/view_game/ajax/add_rating.php", "id=" + id + "&rating=" + sel.title, 
			 function () {}
	)
}

// ADD/DELETE FAV GAME
function AddFav(id, typ, site_url, unfav, fav) {
	AjaxPost(site_url+"/includes/view_game/ajax/add_fav.php", "id=" + id, 
			 function () {}
	)
	
	if (typ == 0) {
		div('favbutton').innerHTML = '<a href="#" onclick="AddFav('+id+', 1, \''+site_url+'\', \''+unfav+'\', \''+fav+'\'); return false">'+unfav+'</a>';
	}
	else {
		div('favbutton').innerHTML = '<a href="#" onclick="AddFav('+id+', 0, \''+site_url+'\', \''+unfav+'\', \''+fav+'\'); return false">'+fav+'</a>';
	}
}


// ADD COMMENT

function AddComment(id, site_url) {
	div('comment_submit').disabled=true;
	div('comment_submit').value="Adding comment...";
	
	thecomment = div('the_comment').value; 
	
	AjaxPost(site_url+"/includes/view_game/ajax/add_comment.php", "comment="+thecomment+"&id="+id, 
	function () {
		if (xmlHttp.readyState == 4 || xmlHttp.readyState == "complete") {
 			if (xmlHttp.responseText == '') {
	 			alert("An error occured in sending your message");
 			}
 			else {
  				var container = document.getElementById('comment_list');
  				var new_element = document.createElement('li');
  				new_element.innerHTML = xmlHttp.responseText;
  				container.insertBefore(new_element, container.firstChild);
  				window.location.hash="1"; 
  				div('comment_submit').value="Comment added!";
  				setTimeout("EnableButton()",30000);
  			}
		}
	}
	)
}

// Re-enable add-comment button

function EnableButton () {
	div('comment_submit').value="Add comment";
	div('comment_submit').disabled=false;
}

function clickclear(thisfield, defaulttext) {
	if (thisfield.value == defaulttext) {
		thisfield.value = "";
	}
}
    
function clickrecall(thisfield, defaulttext) {
	if (thisfield.value == "") {
		thisfield.value = defaulttext;
	}
}

// Ajax delete comment
function DeleteComment(id, site_url) {
	AjaxPost(site_url+"/admin/includes/delete_comment.php", "id=" + id, 
			 function () {
					div('comment-' + id).style.display = 'none';
    		}
	)
}