function changeDomElement(domElement,image) {
	var img = '<img src="' + image + '" />';
	document.getElementById(domElement).innerHTML=img; //return value  
}

function changeDomContent(domElement,newContent) {
	var request = createRequest();
	var url = 'http://www.tristarrestaurants.com/ajax/php/content.php?getContent='+newContent;
	request.open("GET", url, true);
	request.onreadystatechange = function () {
	if (request.readyState==4) {
		if (request.status==200) {
           document.getElementById(domElement).innerHTML=request.responseText; //return value  
		}
	}
};
request.send(null); //send value
}