function getXhttp () {
	var ajax_request;
	if (window.ActiveXObject)  {
		var mSoftVersions = [
			'MSXML2.DOMDocument.5.0',
			'MSXML2.DOMDocument.4.0',
			'MSXML2.DOMDocument.3.0',
			'MSXML2.DOMDocument.2.0',
			'MSXML2.DOMDocument',
			'Microsoft.XmlDom',
			'Msxml2.XMLHTTP',
			'Microsoft.XMLHTTP'
		];
		for (i=0; i<mSoftVersions.length; i++)  {
			try {
				ajax_request = new ActiveXObject(mSoftVersions[i]);
			}  catch (e)  {}
		}
	} else if (!ajax_request && typeof XMLHttpRequest != 'undefined')  {
		try {
			ajax_request = new XMLHttpRequest;
		}  catch (e)  {}
	} else if (!ajax_request && window.createRequest) {
		try {
			ajax_request = window.createRequest;
		}  catch (e)  {}
	} else {
		ajax_request = false;
	}
	return ajax_request;
}
	
function changeBro(user_id){
	
	var ajaxRequest = getXhttp();  // The variable that makes Ajax possible!
	
	// Create a function that will receive data sent from the server
	ajaxRequest.onreadystatechange = function(){
		if(ajaxRequest.readyState == 4){
			var ajaxDisplay = document.getElementById('actualInfo');
			ajaxDisplay.innerHTML = ajaxRequest.responseText;
		} else {
			var ajaxDisplay = document.getElementById('actualInfo');
			ajaxDisplay.innerHTML = '<div style="width:54px; height:55px; margin:20px auto;"><img src="images/ajax-loader.gif" width="54" height="55" /></div>';
		}
	} 
	
	ajaxRequest.open('POST', 'submit/changeBro.php', true);
    ajaxRequest.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');

    ajaxRequest.send('id=' + user_id);
	
}