// X-Mode AJAX Core "Yume" 2.0
// Compatible with X-Mode 3 "Yotsuba" and any other external apps.
// Originally developed by Dave Crane, Eric Pascarello and Darren James
// Developed by Juti Noppornpitak

var net = new Object();
net.READY_STATE_UNINITIALIZED = 0;
net.READY_STATE_LOADING = 1;
net.READY_STATE_LOADED = 2;
net.READY_STATE_INTERACTIVE = 3;
net.READY_STATE_COMPLETE = 4;
net.CONNECTION_TERMINATION = "<blink>Terminating the connection...</blink>";
net.core = function(url, console, onload, loading, onerror,
	method, data, contentType) {
	this.url = url;
	this.currurl = url;
	this.req = null;
	this.console = console;
	this.data = (data) ? data : null;
	this.contentType = (contentType) ? contentType : null;
	this.method = (method) ? method : "GET";
	this.onload = (onload) ? onload : this.defaultLoad;
	this.loading = (loading) ? loading : this.defaultLoading;
	this.onerror = (onerror) ? onerror : this.defaultError;
	// Require the user to manually start the connection.
	// this.connect(url);
}
net.core.prototype = {
	defaultConnect:function() {
		this.connect(this.url);
	},

	connect:function(url, method, data, contentType) {
		// Create the requester
		if(window.XMLHttpRequest) { // for Mozilla/Safari
			this.req = new XMLHttpRequest();
		} else if(window.ActiveXObject) { // for MSIE
			this.req = new ActiveXObject("Microsoft.XMLHTTP");
		}
		
		if(!contentType && method == "POST") {
			contentType="application/x-www-form-urlencoded";
		}

		this.currurl = url;
		
		if(this.req) {
			try {
				var loader = this;
				this.req.onreadystatechange = function() {
					loader.process.call(loader);
				}
				if(!method) { method = "GET"; }
				if(!data) { data = null; }
				this.req.open(method, this.currurl, true);
				if(contentType) {
					this.req.setRequestHeader("Content-Type", contentType);
				}
				this.req.send(data);
			} catch(err) {
				this.onerror.call(this);
			}
		}
	},
	
	process:function() {
		var req = this.req;
		var status = req.readyState;

		if(status == net.READY_STATE_COMPLETE) {
			var httpstatus = req.status;
			if(httpstatus == 200 || httpstatus == 0) {
				this.onload.call(this);
			} else {
				this.onerror.call(this);
			}
		} else {
			// handling loading/connecting
			this.loading.call(this);
		}
	},

	defaultLoad:function() {
		xcie__setElement(this.console, 
			this.req.responseText);
	},
	
	defaultError:function() {
		alert("Error while connecting to: " + this.currurl);
	},

	defaultLoading:function() {
		xcie__setElement(this.console, "Loading");
	}
}

function xcie__element(id) {
	return document.getElementById(id);
}

function xcie__getElement(id) {
	if(!xcie__element(id)) return;
	return xcie__element(id).innerHTML;
}

function xcie__getElementValue(id) {
	if(!xcie__element(id)) return;
	return xcie__element(id).value;
}

function xcie__setElementValue(id, value) {
	if(!xcie__element(id)) return;
	xcie__element(id).value = value;
}

function xcie__setElement(id, value) {
	if(!xcie__element(id)) return;
	xcie__element(id).innerHTML = value;
}

function xcie__setWindowTitle(value) {
	document.title = value;
}

function xcie__setClass(id, nc) {
	xcie__element(id).className = nc;
}

function xcie__img(src, align, other) {
	return "<img border=\"0\" src=\"" + src + "\" align=\""
		+ ((align)?align:"absmiddle")
		+ "\" " + ((other)?other:"") + "/>";
}

function xcie__a(label, value, ajax, other, command) {
	return "<a " + (!ajax?"href=\"" + value + "\"":"onclick=\""
		+ ((command == null)?
			"connect('" + net.PREFIX_LINK + value + "');"
			:command)
		+ "\"")
		+ ((other)?" " + other:"") + "\">"
		+ label + "</a>";
}

function xcie__in(type, name, value, other, cmd) {
	return "<input name=\"" + name + "\" id=\"" + name + "\""
		+ " type=\"" + type + "\" value=\"" + ((value)?value:"")
		+ "\"" + " onclick=\"" + cmd + "\""
		+ ((other)?" " + other:"") + "/>";
}

function addslashes(str) {
	// SRC: Stephen Chapman of About.com
	str=str.replace(/\\/g,'\\\\');
	str=str.replace(/\'/g,'\\\'');
	str=str.replace(/\"/g,'\\"');
	return str;
}

function stripslashes(str) {
	// SRC: Stephen Chapman of About.com
	str=str.replace(/\\'/g,'\'');
	str=str.replace(/\\"/g,'"');
	str=str.replace(/\\\\/g,'\\');
	return str;
}