//Gets the browser specific XmlHttpRequest Object
function getXmlHttpRequestObject() {
    if (window.XMLHttpRequest) {
        return new XMLHttpRequest();
    } else if(window.ActiveXObject) {
        return new ActiveXObject("Microsoft.XMLHTTP");
    } else {
        alert("Om deze site te bekijken heeft u een ajax-compatible browser nodig");
    }
}
var searchReq = getXmlHttpRequestObject();
var searchReq2 = getXmlHttpRequestObject();
var searchReq3 = getXmlHttpRequestObject();
var searchReq4 = getXmlHttpRequestObject();
var searchReq5 = getXmlHttpRequestObject();

//Starts the AJAX request.
function getImages(action) {
    if (searchReq.readyState == 4 || searchReq.readyState == 0) {
        searchReq.open("GET", '/_ajax/attachment.php?action=' + action, true);

        searchReq.onreadystatechange = handleGetImages; 
        searchReq.send(null);	
    }  
}

//Called when the AJAX response is returned.
function handleGetImages() {
    if (searchReq.readyState == 4) {
		 str = searchReq.responseText.split('<end>')
         var ss = document.getElementById('images')
         ss.innerHTML = ''
	     var ss = document.getElementById('images')
         ss.innerHTML = str[1];
		 LoadImage(str[0])
    }
}