/**
*
*  URL encode / decode
*  http://www.webtoolkit.info/
*
**/

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;
	}

}

	function performCommand( command, params, commandId, scriptPath )
	{
		
     	if (typeof commandId == "undefined")
          commandId = "oldCommand";
		  
		if (typeof scriptPath == "undefined")
          scriptPath = "";

	    var head = document.getElementsByTagName('head').item(0);
	    if (head==null)
	       alert("head is null in perform command" );
	       
		var oldCommand  = document.getElementById('commandId');
		if (oldCommand) head.removeChild(oldCommand);
	  
	    script = document.createElement('script');
		
        var url = scriptPath + "scriptCommand.php?command=" + command;
		
		
		parameters = new String(params).split(',');
        for (var i = 0; i < parameters.length; i++) 
        {
			url += "&" + parameters[i];
		}        					
		
	
		script.src = url;
		script.type = 'text/javascript';
		script.defer = false;
		script.id = commandId;
   
        head.appendChild(script);
		  
  }
  
  
/*	
	function getRegions(countryCode) 
  {
		var head = document.getElementsByTagName('head').item(0);
		var old  = document.getElementById('oldCommand');
		if (old) head.removeChild(old);
		
		script = document.createElement('script');
				
		var scriptUrl = "scriptCommand.php?command=region&countryCode=" + countryCode;
        			
		script.src = scriptUrl;
		script.type = 'text/javascript';
		script.defer = false;
		script.id = 'lastLoadedCmds';
		//void(
    head.appendChild(script); //);
		
	} // > function executeRequest(...)
	*/
	/*
	function getChildrenDetails(numChildren) 
  {
		var head = document.getElementsByTagName('head').item(0);
		var old  = document.getElementById('oldCommandCmds');
		if (old) head.removeChild(old);
		
		script = document.createElement('script');
				
		var scriptUrl = "scriptCommand.php?command=children&num=" + numChildren;
        			
		script.src = scriptUrl;
		script.type = 'text/javascript';
		script.defer = false;
		script.id = 'lastLoadedCmds';
		head.appendChild(script);
		
	}
	*/
	
	function writeLayer(ID,parentID,sText) 
	{
		 if (document.layers) 
		 {
		   var oLayer;
		   if(parentID){
		     oLayer = eval('document.' + parentID + '.document.' + ID + '.document');
		   }else{
		     oLayer = document.layers[ID].document;
		   }
		   oLayer.open();
		   oLayer.write(sText);
		   oLayer.close();
		 }
		 else if (parseInt(navigator.appVersion)>=5&&navigator.appName=="Netscape") 
		 {
		   document.getElementById(ID).innerHTML = sText;
		 }
		 else if (document.all) document.all[ID].innerHTML = sText
	} 

	
	/**
	 * 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(...)

function addOption(selObj, sText, sValue, selected ){
          var opt = document.createElement('option');
          var txt = document.createTextNode(sText);
          opt.setAttribute('value', sValue);
          if (selected)
             opt.setAttribute('selected','selected');
                    
          opt.appendChild(txt);
          selObj.appendChild(opt);
          return false;
}

function removeAllOptions(obj){
          var l = obj.options.length;
          for (i=0;i<l;i++){
                    obj.removeChild(obj.options[0]);
          }
          return false;
}