//functions.js	

function runajax(objID, serverPage) {
	
	//Create a boolean variable to check for a valid Internet Explorer instance.
	var xmlhttp = false;
	
	//Check if we are using IE.
	try {
		//If the javascript version is greater than 5.
		xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
	} catch (e) {
		//If not, then use the older active x object.
		try {
			//If we are using Internet Explorer.
			xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
		} catch (E) {
			//Else we must be using a non-IE browser.
			xmlhttp = false;
		}
	}
	//If we are using a non-IE browser, create a javascript instance of the object.
	if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
		xmlhttp = new XMLHttpRequest();
	}
	
	var obj = document.getElementById(objID);
	xmlhttp.open("GET", serverPage);
	xmlhttp.onreadystatechange = function() {
		if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
			obj.innerHTML = xmlhttp.responseText;
		}
	}
	xmlhttp.send(null);
}

//Function to clear error messages.
function clearmes (){
	//Clear any old error messages.
	document.getElementById("errordiv").innerHTML = "";
}

//Function to show a loading message.
function showload (){
	document.getElementById("middiv").innerHTML = "<b>Loading...</b>";
}

//Variable dictating how long to wait to refresh the gallery.
var refreshrate = 1000;

function uploadimg (theform){
	//Submit the form.
	theform.submit();
	//Clear any old error messages.
	clearmes();
	//Show loading.
	showload();
	//Re-load the full size image.
	setTimeout ('runajax ("middiv","/admin/uploadphoto")',refreshrate);
	//Re-load the navigation.
	//setTimeout ('runajax ("picdiv","picnav.php")',refreshrate);
}

function removeimg (theimg){
	runajax ("errordiv","delpic.php?pic=" + theimg + "");
	//Re-load the full size image.
	setTimeout ('runajax ("middiv","midpic.php")',refreshrate);
	//Re-load the navigation.
	setTimeout ('runajax ("picdiv","picnav.php")',refreshrate);
}