//  B E G I N   L A Y E R    M A N I P U L A T I O N   S C R I P T S

var ns = (document.layers) ? 1:0
var ie = (document.all && !document.getElementById) ? 1:0
var ie5 = (document.getElementById && !window.innerHeight) ? 1:0
var ns6 = (window.innerHeight && !document.layers) ? 1:0

var plat = (navigator.platform.indexOf('Mac') > -1) ? 'mac':'pc'

if (ns) {
   origWidth = innerWidth;
   origHeight = innerHeight;
}

function reDo() {
   if (innerWidth != origWidth || innerHeight != origHeight) location.reload();
}

if (ns) onresize = reDo;


// Returns a browser-specific layer object
function getObject(obj,nestDiv) { 
if (ns) {
        if (nestDiv) nest=nestDiv+".document."; 
        else nest="";
        var theObj = eval("document." + nest + obj);
}
else if (ie) {  
        var theObj = eval("document.all." + obj + ".style");
}
else {
        var theObj = document.getElementById(obj)
}
return theObj;
} 


// Returns the current x,y coordinate of a layer
function getPosition(obj,edge,nestDiv) {
if (ns6) {
        pos=parseInt(getObject(obj).style[edge]);
}
else if (ie5) {
        pos=parseInt(document.all[obj].currentStyle[edge]);
}
else {
        if (ie && edge=="left") edge="pixelLeft";
        if (ie && edge=="top") edge="pixelTop";
        pos=getObject(obj,nestDiv)[edge];
}
return pos
}


// Moves layer to new x,y coordinate
function moveLayer(obj,x,y,nestDiv) {
if (ns) {
        getObject(obj,nestDiv).moveTo(x,y);
} 
else if (ie) {          
        getObject(obj).pixelLeft = x;
        getObject(obj).pixelTop = y;
}
else {
        getObject(obj).style.left = x + "px";
        getObject(obj).style.top = y + "px";    
}
}


// Functions to manipulate image states
function getImage(img,nestDiv) {
if (ns && nestDiv) nest=nestDiv+".document.";
else nest="";
var theObj = eval ("document." + nest + img );
return theObj
}

function imgOn(imgName,nestDiv) {
if (document.images){
        getImage(imgName,nestDiv).src = eval(imgName + "on.src");
}
}

function imgOff(imgName,nestDiv) {
if (document.images){
        getImage(imgName,nestDiv).src = eval(imgName + "off.src");
}
}


// Functions to hide and show layer
var hide=(ns)?"hide":"hidden";
var show=(ns)?"show":"visible";


function hideLayer(obj,nestDiv) {
if (ns || ie) {
        getObject(obj,nestDiv).visibility = hide;
} 
else {
        getObject(obj).style.visibility = hide;
}       
}

function showLayer(obj,nestDiv) {
if (ns || ie) {
        getObject(obj,nestDiv).visibility = show;
}
else {
        getObject(obj).style.visibility = show
}               
}


// Write new content to the layer
function writeLayer(obj,content){
if (ns) {
        document[obj].document.open();
        document[obj].document.write(content);
        document[obj].document.close();
}       
else if (ie) {
        document.all[obj].innerHTML=content
}
else {
        getObject(obj).innerHTML=content
}
}

// Change the z-index of a layer
function stackLayer(obj,z,nestDiv) {
//alert('in')
if (ns || ie) {
        getObject(obj,nestDiv).zIndex=z
}
else getObject(obj).style.zIndex=z
}

// Change clipping parameters for a layer
function clipLayer(obj,t,r,b,l,nestDiv) {

obj=getObject(obj,nestDiv)

	if (ns) {
		obj.clip.top=t
		obj.clip.right=r
		obj.clip.bottom=b
		obj.clip.left=l			
	}

	else if (ie) {
		obj.clip="rect("+t+"px "+r+"px "+b+"px "+l+"px)";
	}


	else {
		obj.style.clip="rect("+t+"px "+r+"px "+b+"px "+l+"px)";					
	}

}


//  E N D   L A Y E R   M A N I P U L A T I O N   S C R I P T S