var isDHTML = 0;
var isID = 0;
var isAll = 0;
var isLayers = 0;

if (document.getElementById) {isID = 1; isDHTML = 1;}
else	{
	if (document.all) {isAll = 1; isDHTML = 1;}
	else {
		browserVersion = parseInt(navigator.appVersion);
		if ((navigator.appName.indexOf('Netscape') != -1) && (browserVersion == 4)) {isLayers=1; isDHTML = 1;}
	}
}

function getDOM(objID,fStyle) {
	if (fStyle == 1) {
		if (isID) {return (document.getElementById(objID).style);}
		else {
			if (isAll) {return (document.all[objID].style);}
			else {
				if (isLayers) {return (document.layers[objID]);}
			}
		}
	}
	else {
		if (isID) {return (document.getElementById(objID));}
		else {
			if (isAll) {return (document.all[objID]);}
			else {
				if (isLayers) {return (document.layers[objID]);}
			}
		}	
	}
}

// ****** OBJECT INFO FUNCTIONS ***********
// Objects have to have ID to turn them into CSS layer that can be accessed
function getWidth (objID){
	var dom = getDOM(objID,0);
	if (dom.offsetWidth) return dom.offsetWidth;
	if (com.clip.width) return dom.clip.width;
	return (null);
}
function getHeight (objID){
	var dom = getDOM(objID,0);
	if (dom.offsetHeight) return dom.offsetHeight;
	if (com.clip.height) return dom.clip.height;
	return (null);
}
function getLeft (objID){
	var dom = getDOM(objID,0);
	var domStyle = getDOM(objID,1);
	if (domStyle.left) return domStyle.left;
	if (domStyle.pixelLeft) return domStyle.pixelLeft;
	if (dom.offsetLeft) return dom.offsetLeft;
	return (null);
}
function getTop (objID){
	var dom = getDOM(objID,0);
	var domStyle = getDOM(objID,1);
	if (domStyle.top) return domStyle.top;
	if (domStyle.pixelTop) return domStyle.pixelTop;
	if (dom.offsetTop) return dom.offsetTop;
	return (null);
}
// CAUTION: To find zIndex you first have to set zIndex in code!
function getZ (objID){
	var domStyle = getDOM(objID,1);
	if (domStyle.zIndex != null) return domStyle.zIndex;
	return (null);
}	
function setZ (objID, nZ){
	var domStyle = getDOM(objID,1);
	domStyle.zIndex = nZ;
}	
// CAUTION: To find visibility you first have to set visibility in code!
function getVisibility (objID){
	var domStyle = getDOM(objID,1);
	if ((domStyle.visibility == 'show') || (domStyle.visibility == 'visible')) return 'visible';
	return 'hidden';
}	
function setVisibility (objID, szState){
	var domStyle = getDOM(objID,1);
	domStyle.visibility = szState;
}	
function switchVisibility (objID){
	var domStyle = getDOM(objID,1);
	var szState = domStyle.visibility;
	if ((szState == 'hidden') || (szState == 'hide')) {
		domStyle.visibility = 'visible';
	}
	else {
		domStyle.visibility = 'hidden';
	}
}