var IFrameObj;

function loadPage(URL) {
	showLoading();
	var IFrameDoc;
	if (!IFrameObj) {
		// 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
		try {
			var tempIFrame=document.createElement('iframe');
			tempIFrame.setAttribute('id','page_iframe');
			tempIFrame.style.border='0px';
			tempIFrame.style.width='0px';
			tempIFrame.style.height='0px';
			tempIFrame.style.display='none';
			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['page_iframe'];
			}
		} catch(exception) {
			// This is for IE5 PC, which does not allow dynamic creation
			// and manipulation of an iframe object. Instead, we'll fake
			// it up by creating our own objects.
			iframeHTML='<iframe id="page_iframe" style="';
			iframeHTML+='border:0px;';
			iframeHTML+='width:0px;';
			iframeHTML+='height:0px;';
			iframeHTML+='"><\/iframe>';
			document.body.innerHTML+=iframeHTML;
			IFrameObj = new Object();
			IFrameObj.document = new Object();
			IFrameObj.document.location = new Object();
			IFrameObj.document.location.iframe = document.getElementById('page_iframe');
			IFrameObj.document.location.replace = function(location) {
				this.iframe.src = location;
			}
		}
	}
	
	if (navigator.userAgent.indexOf('Gecko') !=-1 && !IFrameObj.contentDocument) {
		// we have to give NS6 a fraction of a second
		// to recognize the new IFrame
		setTimeout('loadPage(URL)',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;
}

function showLoading(show) {
	if (show != false) { show = true; }
	o = GetObj('loading_');
	if (o) { o.style.display = (show == false ? 'none' : 'block'); }
}

function hideLoading() {
	showLoading(false);
}

function onloadPage() {
	CopyContent(GetObj('page_content',page_iframe),GetObj('main'));
	hideLoading();
}