// GENERIC HTTP REQUEST
function getfile(filepath,ftodo,fvar,ferr){
	var http_request = false;
	if (window.XMLHttpRequest) {
		http_request = new XMLHttpRequest();
		if (http_request.overrideMimeType && filepath.indexOf('.xml') > -1){
			http_request.overrideMimeType('text/xml');
		}
	}else if (window.ActiveXObject) { // IE
		try { http_request = new ActiveXObject("Msxml2.XMLHTTP");
		}catch(ex1){
			try{
				http_request = new ActiveXObject("Microsoft.XMLHTTP");
			}catch(ex2){}
		}
	}
	if (!http_request) {
		return false;
	}
	http_request.onreadystatechange = function() {
		if (http_request.readyState == 4) {
			if (http_request.status == 200) {
				if (filepath.indexOf('.xml') > -1){
					var rdata = http_request.responseXML.documentElement;
				}else{
					var rdata = http_request.responseText;
				}
				ftodo(rdata,fvar); // SUCCESS
			}else{
				if (ferr) { ferr(fvar,filepath,http_request.status,http_request.statusText); } // FAIL
			}
		}
	};
	http_request.open('GET', filepath, true);
	http_request.send(null);
}

// RETURN OBJECT FROM STRING
function getRequestObject(elementID,rdata,elementTag) {
	if (!elementTag){ elementTag = 'div'; } // elementTag optional, defaults to DIV
	var sudocont = document.createElement(elementTag);
	sudocont.innerHTML = rdata;
	var x = sudocont.getElementsByTagName(elementTag);
	var chunk;
	for (var i=0;i<x.length;i++) {
		if (x[i].id == elementID) {
			chunk = x[i];
			break;
		}
	}
	return chunk;
}

// BUILD AN ELEMENT FROM TEXT PULLED FROM XHR
function getElementByIdFromString(textBlob, id) {
	var container = document.createElement('div');
	container.innerHTML = textBlob;
	var tags = container.getElementsByTagName("*");
	for (var a=0; a<tags.length; a++){
		if (tags[a].id == id) { return tags[a]; }
	}
	return null;
}

// GENERIC XML HTTP REQUEST
function xhr(url, successFunc, failFunc, obj, postData){
	var http_request = false;
	if (window.XMLHttpRequest) {
		http_request = new XMLHttpRequest();
	}else if (window.ActiveXObject) { // IE
		try { http_request = new ActiveXObject("Msxml2.XMLHTTP"); }
		catch(e){
			try{ http_request = new ActiveXObject("Msxml3.XMLHTTP"); }
			catch(ex1){
				try{ http_request = new ActiveXObject("Microsoft.XMLHTTP"); }
				catch(ex2){}
			}
		}
	}
	if (!http_request) { return false; }
	if (!postData) { postData = null; }
	var method = (postData) ? "POST" : "GET";
	http_request.open(method, url, true);
	http_request.setRequestHeader('User-Agent','XMLHTTP/1.0');
	if (postData) { http_request.setRequestHeader('Content-type','application/x-www-form-urlencoded'); }
	http_request.onreadystatechange = function() {
		if (http_request.readyState == 4) {
			if (http_request.status == 200) {
				successFunc(http_request.responseText, obj);
			}else{
				failFunc(http_request.status, http_request.statusText, url, obj);
			}
		}
	};
	http_request.send(postData);
}

// GET DATA FROM A FORM FOR XHR
function getFormData(thisform) {
	var fargs = [];
	var inps = reg.getElementsBySelector("input, select, textarea",thisform);
	for (var a=0; a<inps.length; a++){
		var inp = inps[a];
		if (inp.type == "text" || inp.type == "hidden" || inp.type == "password"){
			fargs.push(encodeURIComponent(inp.name) + "=" + encodeURIComponent(inp.value));
		}
		if (inp.type == "checkbox" || inp.type == "radio" && inp.checked){
			fargs.push(encodeURIComponent(inp.name) + "=" + encodeURIComponent(inp.value));
		}
		if (inp.nodeName.toLowerCase()=='select'){
			fargs.push(encodeURIComponent(inp.name) + "=" + encodeURIComponent(inp.options[inp.selectedIndex].value));
		}
		if (inp.nodeName.toLowerCase()=='textarea'){
			fargs.push(encodeURIComponent(inp.name) + "=" + encodeURIComponent(inp.value));
		}
	}
	return fargs.join('&');
}