// All part of the Dynamic Star Rating by Jordan Boesch!
// http://creativecommons.org/licenses/by-nc-nd/2.5/ca/
// PRE-LOAD IMAGES -----------------------------

if (document.images){
  pic1 = new Image(220,19); 
  pic1.src = "images/rating_loading.gif"; 

  pic2 = new Image(16,48); 
  pic2.src = "images/rating_star_3.gif"; 

  pic3 = new Image(16,48); 
  pic3.src = "images/rating_star_3.gif"; 
  
  pic4 = new Image(16,13); 
  pic4.src = "images/rating_tick.gif";
  
  pic5 = new Image(14,14); 
  pic5.src = "images/rating_warning.gif";
}

// AJAX ----------------------------------------

var xmlHttp

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;

}


// Calculate the rating
function rate(rating,id,show5,showPerc,showVotes){

	xmlHttp = GetXmlHttpObject()
	
	if(xmlHttp == null){
		alert ("tu navegador no soporta AJAX!");
		return;
	  }

	xmlHttp.onreadystatechange = function(){
		
	var loader = document.getElementById('loading_'+id);
	//--var uldiv = document.getElementById('ul_'+id);
	var uldiv = document.getElementById('ratings_'+id);
	
		if (xmlHttp.readyState == 4){ 
			
			//loader.style.display = 'none';
			var res = xmlHttp.responseText;
			
			//alert(res);
			
			if(res == 'already_voted'){
				
				loader.style.display = 'block';
				loader.innerHTML = '<div class="voted_twice">No se puede votar más de una vez</div>';
				
			} else {
				
				loader.style.display = 'block';
				loader.innerHTML = '<div class="voted">ˇGracias por votar!</div>';

				if(show5 == true){
					var out = document.getElementById('outOfFive_'+id);
					//--calificación tope5
					var calculate = res/20;
					//--calificación tope10
					//--var calculate = res/10;					
					out.innerHTML = '<table><tr><td height=50><span class=geoverde52>'+Math.round(calculate*100)/100+'</span></td></tr></table>'; // 3.47;
					//out.innerHTML = Math.round((calculate*2),0)/2; // 3.5;
				} 
				
				if(showPerc == true){
					var perc = document.getElementById('percentage_'+id);
					//var newPerc = Math.round(Math.ceil(res/5))*5;
					var newPerc = res;
					perc.innerHTML = newPerc+'%';
				}
				
				else if(showPerc == false){
					var newPerc = res;
				}
				
				if(showVotes == true){
					var votediv = document.getElementById('showvotes_'+id).firstChild.nodeValue;					
					var splitted = votediv.split(' ');
					//--var newval = parseInt(splitted[0]) + 1;
					var newval = parseInt(splitted[1]) + 1;
					//newval = newval.substring(0,1);
					//--var newval = extraer(votediv,'2>','</');
					
					//--document.getElementById('nottex_'+id).innerHTML = 'La nota est&aacute; de... ';
					
					if(newval == 1){
						document.getElementById('showvotes_'+id).innerHTML = '(Votos '+ newval+')';
					} else {
						document.getElementById('showvotes_'+id).innerHTML = '(Votos '+ newval+')';
					}
					
				}
				
				var ulRater = document.getElementById('rater_'+id);
				ulRater.className = 'star-rating2';
				
				var all_li = ulRater.getElementsByTagName('li');
				
				// start at 1 because the first li isn't a star
				for(var i=1;i<all_li.length;i++){
					
					all_li[i].getElementsByTagName('a')[0].onclick = 'return false;';
					all_li[i].getElementsByTagName('a')[0].setAttribute('href','#');
					
				}
				
				if(navigator.appName == 'Microsoft Internet Explorer'){
					uldiv.style.setAttribute('width',newPerc+'%'); // IE
				 } else {
					uldiv.setAttribute('style','width:'+newPerc+'%'); // Everyone else
				 }
				
			}
		} else {
			loader.innerHTML = '<img src="images/rating_loading.gif" alt="loading" />';	
		}
	
	}
	var url = "/star_rating/includes/rating_process.php";
	var params = "id="+id+"&rating="+rating;
	xmlHttp.open("POST",url,true);
	xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	xmlHttp.setRequestHeader("Content-length", params.length);
	xmlHttp.setRequestHeader("Connection", "close");
  xmlHttp.setRequestHeader( "If-Modified-Since", "Sat, 1 Jan 2000 00:00:00 GMT" );	
	xmlHttp.send(params);

} 






/*
// Calculate the rating
function fratings(id){


var loadratings = document.getElementById('ratings_'+id);
loadratings.innerHTML = "http://tva.com.mx/star_rating/pages/vot"+id+".html";	


	xmlHttp = GetXmlHttpObject()
	if(xmlHttp == null){		alert ("tu navegador no soporta AJAX!");		return;	  }
	else{ alert(xmlHttp); }


	xmlHttp.onreadystatechange = function(){
	alert("http://tva.com.mx/star_rating/pages/vot"+id+".html");
  	
	}

} 
*/