var DHTML = false, DOM = false, MSIE4 = false, NS4 = false, OP = false;
var MouseX = 0, MouseY = 0;

if(document.getElementById) {
	DHTML = true;
	DOM = true;
}
else {
	if(document.all) {
		DHTML = true;
		MSIE4 = true;
	}
	else {
		if(document.layers) {
			DHTML = true;
			NS4 = true;
		}
	}
}
if(window.opera) {
	OP = true;
}

function getElement(Mode, Identifier, ElementNumber) {
	var Element;
	if(DOM) {
		if(Mode.toLowerCase() == "id") {
			if(typeof document.getElementById(Identifier) == "object") {
				Element = document.getElementById(Identifier);
			}
			else {
				Element = false;
			}
			return Element;
		}
		if(Mode.toLowerCase() == "name") {
			var ElementList = document.getElementsByName(Identifier);
			if(typeof ElementList == "object" || (OP && typeof ElementList == "function")) {
				Element = ElementList[ElementNumber];
			}
			else {
				Element = false;
			}
			return Element;
		}
		if(Mode.toLowerCase() == "tagname") {
			var ElementList = document.getElementsByTagName(Identifier);
			if(typeof ElementList == "object" || (OP && typeof ElementList == "function")) {
				Element = ElementList[ElementNumber];
			}
			else {
				Element = false;
			}
			return Element;
		}
		return null;
	}
	if(MSIE4) {
		if(Mode.toLowerCase() == "id") {
			if(typeof document.all[Identifier] == "object") {
				Element = document.all[Identifier];
			}
			else {
				Element = false;
			}
			return Element;
		}
		if(Mode.toLowerCase() == "tagname") {
			if(typeof document.all.tags(Identifier) == "object") {
				Element = document.all.tags(Identifier)[ElementNumber];
			}
			else {
				Element = false;
			}
			return Element;
		}
		if(Mode.toLowerCase() == "name") {
			if(typeof document[Identifier] == "object") {
				Element = document[Identifier];
			}
			else {
				Element = false;
			}
			return Element;
		}
		return false;
	}
	if(NS4) {
		if(Mode.toLowerCase() == "id" || Mode.toLowerCase() == "name") {
			if(typeof document[Identifier] == "object") {
				Element = document[Identifier];
			}
			else {
				Element = false;
			}
			return Element;
		}
    	if(Mode.toLowerCase() == "index") {
			if(typeof document.layers[Identifier] == "object") {
				Element = document.layers[Identifier];
			}
			else {
				Element = false;
			}
			return Element;
		}
		return false;
	}
  	return false;
}

function getContent(Mode, Identifier, ElementNumber) {
	var Content;
	var Element = getElement(Mode, Identifier, ElementNumber);
	if(!Element) {
		return false;
	}
	if(DOM && Element.firstChild) {
		if(Element.firstChild.nodeType == 3) {
			Content = Element.firstChild.nodeValue;
		}
		else {
			Content = "";
		}
		return Content;
	}
	if(MSIE4) {
		Content = Element.innerText;
		return Content;
	}
	return false;
}

function getAttribute(Mode, Identifier, ElementNumber, AttributeName) {
	var Attribute;
	var Element = getElement(Mode, Identifier, ElementNumber);
	if(!Element) {
		return false;
	}
	if(DOM || MSIE4) {
		Attribute = Element.getAttribute(AttributeName);
		return Attribute;
	}
	if(NS4) {
		if(typeof Element[ElementNumber] == "object") {
			Attribute = Element[ElementNumber][AttributeName];
		}
		else {
			Attribute = Element[AttributeName]
		}
		return Attribute;
	}
	return false;
}

function setContent(Mode, Identifier, ElementNumber, Text) {
	var Element = getElement(Mode, Identifier, ElementNumber);
	if (!Element) {
		return false;
	}
	if(DOM && Element.firstChild) {
		Element.firstChild.nodeValue = Text;
		return true;
	}
	if(MSIE4) {
		Element.innerText = Text;
		return true;
	}
	if(NS4) {
		Element.document.open();
		Element.document.write(Text);
		Element.document.close();
		return true;
	}
}

function setMousePos(eventMouse) {
	if(!eventMouse) {
		eventMouse = window.event;
	}
	if(eventMouse.clientX) {
		MouseX = eventMouse.clientX;
		MouseY = eventMouse.clientY;
	}
	else {
		MouseX = eventMouse.pageX;
		MouseY = eventMouse.pageY;
	}
}

document.onmousemove = setMousePos;