// JavaScript Document

   var http_request = false;
   function makeRequest(url, parameters) {
	  http_request = false;
	  if (window.XMLHttpRequest) { // Mozilla, Safari,...
		 http_request = new XMLHttpRequest();
		 if (http_request.overrideMimeType) {
		 	// set type accordingly to anticipated content type
			//http_request.overrideMimeType('text/xml');
			http_request.overrideMimeType('text/html');
		 }
	  } else if (window.ActiveXObject) { // IE
		 try {
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
		 } catch (e) {
			try {
			   http_request = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {}
		 }
	  }
	  if (!http_request) {
		 alert('Cannot create XMLHTTP instance');
		 return false;
	  }
	  http_request.onreadystatechange = alertContents;
	  http_request.open('GET', url + parameters, true);
	  http_request.send(null);
   }
   function alertContents() {
	  if (http_request.readyState == 4) {
		 if (http_request.status == 200) {
			//alert(http_request.responseText);
			result = http_request.responseText;
			document.getElementById('myspan').innerHTML = result;
			//Get a reference to CAPTCHA image
			img = document.getElementById('imgCaptcha');
			//Change the image
			img.src = 'create_image.php?' + Math.random(); // Search for new image
			document.getElementById('txtCaptcha').value=''; //Reset input Captcha  after succes return 
		 } else {
			alert('There was a problem with the request.');
		 }
	  }
   }
   function get(obj) {
	  var getstr = "?" +
			"&mytextarea=" + encodeURI( document.getElementById("mytextarea").value) +
			"&txtCaptcha=" + encodeURI( document.getElementById("txtCaptcha").value) ;
	  makeRequest('get.php', getstr);
   }
// IMAGE REFRESHING
function refreshimg()
{
	//Get a reference to CAPTCHA image
	img = document.getElementById('imgCaptcha');
	//Change the image
	img.src = 'create_image.php?' + Math.random();
}