/* Adapted from VoteItUp */
/* A general script for updating the contents of the vote widget on the fly */
/*
USAGE:
vote (object to update with vote count, object to update with after vote text, post id, user id, base url)
*/

var xmlHttp
var currentobj
var voteobj
var aftervotetext
var gpostid

//Useful for compatibility
function function_exists( function_name ) { 
    if (typeof function_name == 'string'){ return (typeof window[function_name] == 'function'); 
    } else{ return (function_name instanceof Function); }
}

//Javascript Function for JavaScript to communicate with Server-side scripts
function lg_AJAXrequest(scriptURL) {
	xmlHttp=zGetXmlHttpObject()
	if (xmlHttp==null) {
		alert ("Your browser does not support AJAX!");
		return;
	} 
	xmlHttp.onreadystatechange=zvoteChanged;
	xmlHttp.open("GET",scriptURL,true);
	xmlHttp.send(null);
}

function zGetXmlHttpObject() {
	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;
}

function zvoteChanged() { 
	if (xmlHttp.readyState==4) { 
		var votedisp = document.getElementById('voteid' + currentobj);
		var votenodisp = document.getElementById('votes' + currentobj);
		var voteno = xmlHttp.responseText;
	
		currentobj_obj = document.getElementById(currentobj);
		voteobj_obj = document.getElementById(voteobj);
		votewidgetobj_obj = currentobj_obj.parentNode;
		votebuttonobj_obj = voteobj_obj.parentNode;
		currentobj_obj.innerHTML = voteno + " PEOPLE LIKE THIS";
		voteobj_obj.innerHTML = aftervotetext;
		if (aftervotetext == '') {
			votebuttonobj_obj.style.display = 'none';
			votewidgetobj_obj.setAttribute("class", "post_votewidget_closed");
			votewidgetobj_obj.setAttribute("className", "post_votewidget_closed"); 
		}
	}
}

function vote(obj, votelinkobj, aftervote, postID ,userID, baseURL) {
	currentobj = obj;
	voteobj = votelinkobj;
	gpostid = postID;
	aftervotetext = aftervote;
	var scripturl = baseURL+"/voteinterface.php?type=vote&tid=total&uid="+userID+"&pid="+postID+"&auth="+Math.random();
	lg_AJAXrequest(scripturl);
}

function sink(obj, votelinkobj, aftervote, postID ,userID, baseURL) {
	currentobj = obj;
	voteobj = votelinkobj;
	aftervotetext = aftervote;
	var scripturl = baseURL+"/voteinterface.php?type=sink&tid=total&uid="+userID+"&pid="+postID+"&auth="+Math.random();
	lg_AJAXrequest(scripturl);
}