var oCookie;
Array.prototype.indexOf=function(elem)
{
	for(var x=0; x<this.length; x++)
	{
		if(this[x]==elem)
		{
			return x;
		}
	}
	return -1;
}

var imoList= new Array();
var nodeList= new Array();
//var lng ="PT";

function addImo(clid)
{
	//alert("pushing :"+clid);
	loaded=true;
	imoList.push(parseInt(clid));
}

function remImo(clid)
{
	loaded=true;
	if(imoList.indexOf(clid)!=-1)
	{
		imoList.splice(imoList.indexOf(clid),1);
	}
}


var loaded=false;
function initFavourites()
{
	//lng=lang;	
		if(cookiesEnabled())
		{
			var list=readCookie('favourites');
			if(list!="")
			{
				imoList=list.split(',');
				loaded=true;
				//alert('getting from cookie');
			}
		}	
		
	nodeList=getElements();
	refreshNodes();
}

function refreshNodes()
{
	//alert("on init "+imoList.length + "location :"+window.location.href);
	//alert("Refreshing nodes");
	for(var g=0;g<nodeList.length;g++)
	{               
		var node=nodeList[g];
		if(imoList.indexOf(node.getAttribute("favourite"))==-1)
		{				
			node.ondoubleclick=function(){}
			node.style.cursor="hand";	
			node.src=node.getAttribute('addImage');
			node.alt=node.getAttribute('addAlt');
			node.onclick=function()
			{
				addImo(this.getAttribute("favourite"));
				refreshNodes();
								
				if(this.getAttribute("_onClick"))
					eval(this.getAttribute("_onClick"));
			}
		}
		else
		{
			node.ondoubleclick=function(){}
			node.style.cursor="hand";	
			node.src=node.getAttribute('remImage');
			node.alt=node.getAttribute('remAlt');
			node.onclick=function()
			{
				remImo(this.getAttribute("favourite"));
				refreshNodes();
					
				if(this.getAttribute("_onClick"))
					eval(this.getAttribute("_onClick"));
			}
		}
		
		if(node.getAttribute("favouriteStyle"))
		{
			node.className=node.tagName+'favourite';
		}
	}//end for
}//end function


////////////////////////Interface functions /////////////////////////
function listFavourites(url)
{
	if(!url)
		url="listagem.htm";
		
	var href="?"+getFavourites();
	window.location.href=url+href;
}

function getFavourites()
{
	var aux;
	
	if(loaded)
		aux=imoList.join(',');			
	else
		aux=readCookie('favourites')
	
	aux=aux.charAt(0)==","?aux.substring(1):aux;
	aux=aux==""?0:aux;
	return "RIL="+aux;
}

function clearCookies(_refresh)
{
	imoList= new Array();
	saveCookie();	
	if(_refresh)
		refreshNodes();
}

function saveCookie()
{
	var Realestatelist=imoList.join(',');
	Realestatelist = Realestatelist.charAt(0) == "," ? Realestatelist.substring(1) : Realestatelist;
	var dat = new Date();
	var nextYear = dat.getTime()+ (365 * 24 * 60 * 60 * 1000);
	dat.setTime(nextYear);
	document.cookie='favourites='+Realestatelist+';expires='+dat.toGMTString()+';path=/';
}


////////////////////////guardar cookie /////////////////////////




window.onbeforeunload=function()
{
	if(loaded)
		saveCookie();
}




/*** verifica se os cookies estão bloqueados ***/
function cookiesEnabled()
{
	var _date = new Date();
	_date.setTime(_date.getTime()+9000);
	document.cookie='test=true;expires='+_date.toGMTString();
	var aux=readCookie('test');

	if(aux != "")
	{
		return true;	
	}
	
	return false;
}

/*** Percorre todos os elementos do body e devolde um array com a referência dos que manipulam os favoritos  ***/
function getElements()
{
	var temp= new Array(document.body);
	var fav= new Array();
	//var temp= document.body.childNodes;
	
	for(var i=0; i<temp.length; i++)
	{
		if(temp[i].hasChildNodes)
		{
			for(var x=0; x<temp[i].childNodes.length;x++)
			{
				var node=temp[i].childNodes[x];
				if(node.nodeType==1)
				{
					temp.push(node);
					if(node.getAttribute('favourite'))
						fav.push(node);
				}
			}
		}
	}
	return fav
}



/////////////////////////////  Generic functions  ///////////////////////

/*** Devolve o valor de uma determinada chave do cookie ***/
function readCookie(val)
{
	var scrambles=new Array();
	scrambles=document.cookie.split(';');
	for(var x=0; x<scrambles.length;x++)
	{
		var keys= new Array();
		keys= scrambles[x].split('=');
		
		var aux=keys[0].toLowerCase();
		if(aux.trim()==val.toLowerCase() && keys[1] && keys[1]!="")
		{	
			return keys[1];
		}
	}
	return "";
}

String.prototype.lTrim=function()
{
	var index=0;
	while(this.charCodeAt(index)==32 && index<this.length)
	{
		index++; 
	}
	
	if(index==this.length)
		return "";
	else
		return this.substring(index);
}

String.prototype.rTrim=function()
{
	var index=this.length-1;
	
	while(this.charCodeAt(index)==32 && index>0)
	{
		index--;	
	}
	
	if(index==0 && this.charAt(index)==32)
		return "";
	else
		return this.substring(0, index+1);
}

String.prototype.trim=function()
{
	var aux=this.rTrim();
	return aux.lTrim();
}