/*
Version 2 beta / bajax.berlios.de
*/
var bajax = {
	bajax_debug_mode : false,//Debug flag
	bajax_request_type : "GET", //GET or POST
	uri : "", // :-P PHP!!
	output :null,
	A :  null,
	/*document.getElementById('blah') sucks*/
	e : function(id){
		return document.getElementById(id);
	},	
	/*	Change request type	*/
	changeRequestType: function(type){
		if (type=='GET' || type=='POST')
			this.bajax_request_type = type;
		else this.debug('Request type error');
	},
	
	/*	Debug method	*/
	debug: function (text) {
		if (this.bajax_debug_mode)
			alert("DEBUG: " + text)
	},
	/*	Create XMLHttpRequest object*/
	init: function () {
		this.debug("bajax_init_object() called..")
		if (this.A == null) {
			try {
				this.A=new ActiveXObject("Msxml2.XMLHTTP");
			} catch (e) {
				try {
					this.A=new ActiveXObject("Microsoft.XMLHTTP");
				} catch (oc) {
					this.A=null;
				}
			}
			if(!this.A && typeof XMLHttpRequest != "undefined")
				this.A = new XMLHttpRequest();
			if (!this.A)
				this.debug("Could not create connection object.");
			return this.A;
		} else {
			return this.A;	
		}
	},
	
	/* Simulate include function */
	include: function(id,url){
		uri = url;
		this.uri = url;
		A = this.init();
		A.open(this.bajax_request_type,url,true);
		A.onreadystatechange=function() {
			if (A.readyState==4){
				if(A.status == 200) {  
					retorno=unescape( A.responseText );
					bajax.e(id).innerHTML = retorno;
				} else this.debug('ERROR');
			}
		}
		A.send(null);
	},
	/*	make a call, like execute but whithout 2 argument	*/
	call: function(page , func_js, dargs) {
		this.execute(page ,'BAJAX_CALL', func_js ,dargs)
	},
	
	/*	Make a call to execute the function (not used anymore)	*/
	execute: function (page ,func_name, func_js, dargs) {
		var i, n;
		var A;
		var post_data;
		uri  = page;
		this.uri = page;
		bajax_request_type = this.bajax_request_type;
	
		if (bajax_request_type == "GET") {
/*			if (uri.indexOf("?") == -1) 
				uri = uri + "?rname=" + escape(func_name);
			else
				uri = uri + "&rname=" + escape(func_name);*/
			for (akey in dargs){ 
				if( typeof( dargs[akey] ) == "string" )
					uri = uri + "&"+akey+"=" + escape(dargs[akey]);else
					uri = uri + "&"+akey+"=" +dargs[akey];
			}	
			//uri = uri + "&rtime=" + escape(new Date().getTime());
			post_data = null;
		} else {
			//post_data = "rname=" + escape(func_name);
			for (akey in dargs){ 
				if( typeof( dargs[akey] ) == "string" ) 
					post_data  = post_data + "&"+akey+"=" + escape(dargs[akey]);else
					post_data  = post_data + "&"+akey+"=" +dargs[akey];
			}					
		}
		
		A = this.init();
		try {
			A.open(bajax_request_type, uri, true);	
		} catch (e){
			alert(e);
		}

		if (bajax_request_type == "POST") {
			A.setRequestHeader("Method", "POST " + uri + " HTTP/1.1");
			A.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
		}
		A.onreadystatechange = function() {
			if (A.readyState != 4) 
				return;
			bajax.debug("received " + A.responseText);
			var data;
			data = A.responseText;
			func_js(data);
		}
		A.send(post_data);
		delete(A);
		this.debug(func_name + " uri = " + uri + "/post = " + post_data);
		this.debug(func_name + " waiting..");
		//delete A;
	},
	/*	Aliases for document.getElementById(id).innerHTML	*/
	insertHTML : function(id,content){
		this.e(id).innerHTML = content;
	},
	getHTML : function(id){
		return this.e(id).innerHTML;
	}
}
/* Some coffee */
var bajaxUtil = {
	/*	Decode e encode: 
   http://www.phpbrasil.com/articles/article.php/pagerRow/3/id/1182 
   by Fabr�io Nogueira Magri	
  */
	 urlEncode : function(str) { 
		hex_chars = "0123456789ABCDEF"; 
		noEncode = /^([a-zA-Z0-9\_\-\.])$/; 
		n= "";
		strCode= "";
		hex1= "";
		hex2= "";
		strEncode = ""; 
	
		for(n = 0; n < str.length; n++) { 
			if (noEncode.test(str.charAt(n))) { 
				strEncode += str.charAt(n); 
			} else { 
				strCode = str.charCodeAt(n); 
				hex1 = hex_chars.charAt(Math.floor(strCode / 16)); 
				hex2 = hex_chars.charAt(strCode % 16); 
				strEncode += "%" + (hex1 + hex2); 
			} 
		}
		return strEncode; 
	}, 
	urlDecode : function(str) { 
		n= "";
		strCode= "";
		strDecode = ""; 
		
		for (n = 0; n < str.length; n++) { 
			if (str.charAt(n) == "%") { 
				strCode = str.charAt(n + 1) + str.charAt(n + 2); 
				strDecode += String.fromCharCode(parseInt(strCode, 16)); 
				n += 2; 
			} else { 
				strDecode += str.charAt(n); 
			} 
		} 
		return strDecode; 
	}, 	
	trim : function (str){
		return str.replace(/^\s*|\s*$/g,"")
	}
}