// JavaScript Document

var Url = {

	// public method for url encoding
	encode : function (string) {
		return escape(this._utf8_encode(string));
	},

	// public method for url decoding
	decode : function (string) {
		return this._utf8_decode(unescape(string));
	},

	// private method for UTF-8 encoding
	_utf8_encode : function (string) {
		string = string.replace(/\r\n/g,"\n");
		var utftext = "";

		for (var n = 0; n < string.length; n++) {

			var c = string.charCodeAt(n);

			if (c < 128) {
				utftext += String.fromCharCode(c);
			}
			else if((c > 127) && (c < 2048)) {
				utftext += String.fromCharCode((c >> 6) | 192);
				utftext += String.fromCharCode((c & 63) | 128);
			}
			else {
				utftext += String.fromCharCode((c >> 12) | 224);
				utftext += String.fromCharCode(((c >> 6) & 63) | 128);
				utftext += String.fromCharCode((c & 63) | 128);
			}

		}

		return utftext;
	},

	// private method for UTF-8 decoding
	_utf8_decode : function (utftext) {
		var string = "";
		var i = 0;
		var c = c1 = c2 = 0;

		while ( i < utftext.length ) {

			c = utftext.charCodeAt(i);

			if (c < 128) {
				string += String.fromCharCode(c);
				i++;
			}
			else if((c > 191) && (c < 224)) {
				c2 = utftext.charCodeAt(i+1);
				string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
				i += 2;
			}
			else {
				c2 = utftext.charCodeAt(i+1);
				c3 = utftext.charCodeAt(i+2);
				alert( "decoding " + c + "," + c2 + "," + c3 );
				string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
				i += 3;
			}

		}
        
		return string;
	}

}


/**
	 * Dynamically updates the content of a frame.
	 * 
	 */
	function update(id, html, urlencoded )
	{
		
//		if (id=="smallBasket")
//	alert( "before " + id +" ,"  + html );			
		if (urlencoded)
		{
		html = unescape( html );
//		   html = Url.decode( html );
		   html = html.replace( /\+/g," ");  
		}		   		
	//	if (id=="smallBasket")		

// ú  alert( id +" ,"  + html );		   
		// var doc = eval(frame + '.document');
		
		var doc = eval( 'document' );
		
		if (doc.layers) 
		{
			var l = doc[id];
			l.document.open();
			l.document.write(html);
			l.document.close();
		} else if (doc.all && doc.all[id]) 
		{
			doc.all[id].innerHTML = html;
		} else if (doc.createRange) 
		{
			var l = doc.getElementById(id);
			if (l!=null)
			{
				var r = doc.createRange();
				while (l.hasChildNodes()) {
					l.removeChild(l.lastChild);
				}
				r.setStartAfter(l);
				var docFrag = r.createContextualFragment(html);
				l.appendChild(docFrag);
			}
		}
		
	} // > function update(...)
	
	
	/*
 * Find the absolute position (relative to document) of the specified element
 */
function findPos(obj) {

	if (!obj)
	  return [0,0];
	  
	var curleft = curtop = 0;
	if (obj.offsetParent) {
		curleft = obj.offsetLeft
		curtop = obj.offsetTop
		while (obj = obj.offsetParent) {
			curleft += obj.offsetLeft
			curtop += obj.offsetTop
		}
	}
	return [curleft,curtop];
}