var IFrameObj; // our IFrame object

function callToServer( URL ) {
	if (!document.createElement) {return true};
	var IFrameDoc;
	
	/* provide a "loading" message
	var responseMessage = document.getElementById('responseMessage');
	responseMessage.style.display = 'inline';
	responseMessage.innerHTML = 'loading data...';
	*/
	
	if (!IFrameObj && document.createElement) {
		// create the IFrame and assign a reference to the
		// object to our global variable IFrameObj.
		// this will only happen the first time 
		// callToServer() is called
		var tempIFrame=document.createElement('iframe');
		tempIFrame.setAttribute('id','RPCFrame');
		tempIFrame.style.border='0px';
		tempIFrame.style.width='0px';
		tempIFrame.style.height='0px';
		IFrameObj = document.body.appendChild(tempIFrame);
	
		if (document.frames) {
			// this is for IE5 Mac, because it will only
			// allow access to the document object
			// of the IFrame if we access it through
			// the document.frames array
			IFrameObj = document.frames['RPCFrame'];
		}
	}
	
	if (navigator.userAgent.indexOf('Gecko') !=-1 && !IFrameObj.contentDocument) {
		// we have to give NS6 a fraction of a second
		// to recognize the new IFrame
		setTimeout('callToServer("'+theFormName+'")',10);
		return false;
	}
	
	if (IFrameObj.contentDocument) {
		// For NS6
		IFrameDoc = IFrameObj.contentDocument; 
	} else if (IFrameObj.contentWindow) {
		// For IE5.5 and IE6
		IFrameDoc = IFrameObj.contentWindow.document;
	} else if (IFrameObj.document) {
		// For IE5
		IFrameDoc = IFrameObj.document;
	} else {
		return true;
	}
	
	IFrameDoc.location.replace(URL);
	return false;
}