// --------------------------------------------------------------
// ------------------ FUNCIONES --------------------------
// --------------------------------------------------------------



	function abrirPagina(pagina,ancho,alto){
		var top;
		var left;
		
		top = (screen.height - alto) / 2;
		left = (screen.width - ancho) / 2;
			
		 window.open(pagina,'_blank','top='+top+',left='+left+',directories=no,scrollbars=no,menu=no,titlebar=yes,location=no,width='+ancho+',height='+alto+'');
		//window.open(pagina,'_blank','top=0,left=0,directories=no,scrollbars=no,menu=no,location=no')
	}
	
	function abrirPaginaConScroll(pagina,ancho,alto){
		var top;
		var left;
		
		top = (screen.height - alto) / 2;
		left = (screen.width - ancho) / 2;
			
		 window.open(pagina,'_blank','top='+top+',left='+left+',directories=no,scrollbars=yes,menu=no,titlebar=yes,location=no,width='+ancho+',height='+alto+'');
		//window.open(pagina,'_blank','top=0,left=0,directories=no,scrollbars=no,menu=no,location=no')
	}
	
	var cookies = new Object();
	
	function extractCookies()
	{
		var name,value;
		var beginning,middle,end;
		
		for (name in cookies)
		{
			cookies = new Object();
			break;
		}
		beginning = 0;
		while (beginning < document.cookie.length)
		{
			middle = document.cookie.indexOf('=',beginning);
			end = document.cookie.indexOf(';',beginning);
			
			if (end == -1)
				end  = document.cookie.length;
			
			if ((middle > end) || (middle == -1))
			{
				name = document.cookie.substring(beginning,end);
				value = "";
			}
			else
			{
				name = document.cookie.substring(beginning,middle);
				value = document.cookie.substring(middle + 1,end);
			}
			
			cookies[name] = unescape(value);
			
			beginning = end + 2;
		}
	}