var xmlhttp;
var browser;

function requestContent(p) {
    browser = navigator.appName;
    if (browser == "Microsoft Internet Explorer") {
        xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");	
	} else {
		// all other browsers - create an instance of the XMLHttpRequest javascript object
        xmlhttp = new XMLHttpRequest();
    }
 	
	var params = "getContent="+p;
		
    xmlhttp.onreadystatechange = triggered; 
	// send a GET request to the specified php file
    xmlhttp.open("GET", "/includes/ajax_requests.php?" + params);
    xmlhttp.send(null);
}

function triggered() {
	// this is where we display the text we got back from our php script
    if ((xmlhttp.readyState == 4) && (xmlhttp.status == 200)) {
		var ajaxReplace = document.getElementById('ajaxContent');
        var responseText = xmlhttp.responseText;
		ajaxReplace.innerHTML = (responseText);
	}
}