function showImage ( id ) {

				 var url = "showImg.php?"; // The server-side script
				 http.open("GET", url + "id=" + escape (id), true) 
			   http.onreadystatechange = function () {
      	 	 if (http.readyState == 4) {
     			 		results = http.responseText;
					 		document.getElementById("imageContainer").innerHTML = results;
					 }
   			 } 
  			 http.send('requestItem');				 

}