// JavaScript Document

function resizeIframe(ifName, doc) {
	if (doc == undefined) { doc = document}
	if (isExplorer()) {
		iframe = getElementFromDocument(doc, ifName); 
		iframe.height=doc.frames(ifName).document.body.scrollHeight; 
	} else {
		iframe = getElementFromDocument(doc, ifName); 
		iframe.height = doc.getElementById(ifName).contentDocument.body.scrollHeight;
		
		}
}

function isExplorer() {
	if (document.all)
		return true;
	return false;
}


function getElementFromDocument(document, name) {
	var obj;
	if (document.getElementById) {
		obj = document.getElementById(name);
	} 
	if (! obj && document.getElementByName) {
		obj = document.getElementByName(name);
	} 
	if (! obj && document.all) {
		obj = document.all[name];
	}
	return obj;
}

function getElement(name) {
	var obj=getElementFromDocument(document, name);
	if (! obj) {
		try {
			obj = eval("document.frm."+name);
		} catch(e) {
		}
	}
	return obj;
}

function getElementValue(name) {
	var element = getElement(name);
	if (element) {
		if (isCheck(element))
			return element.checked ? "true" : "false";
		return element.value;
	}
	return "";
}

function setPhotoNumber(n){
	photoNumber = parseInt(n)
}

function navigate(step, photoPath) {
		var ind = photoNumber + step
		if (ind > maxNumber)
			ind = maxNumber
		if (ind < 1)
			ind = 1
		setPhotoNumber(ind);	
			
		iframe = getElementFromDocument(parent.document, 'photo'); 	
		iframe.src = 'photo.asp?photoName='	+ getPhotoByIndex(ind) + '&photoPath=' + photoPath;
	
}