// overly simplistic test for IE
isIE = (document.all ? true : false);
// both IE5 and NS6 are DOM-compliant
isDOM = (document.getElementById ? true : false);

// get the true offset of anything on NS4, IE4/5 & NS6, even if it's in a table!
function getAbsX(elt) { return (elt.x) ? elt.x : getAbsPos(elt,"Left"); }
function getAbsY(elt) { return (elt.y) ? elt.y : getAbsPos(elt,"Top"); }
function getAbsPos(elt,which) {
 iPos = 0;
 while (elt != null) {
  iPos += elt["offset" + which];
  elt = elt.offsetParent;
 }
 return iPos;
}

function getDivStyle(divname) {
 var style;
 if (isDOM) { style = document.getElementById(divname).style; }
 else { style = isIE ? document.all[divname].style
                     : document.layers[divname]; } // NS4
 return style;
}

function hideElement(divname) {
 getDivStyle(divname).visibility = 'hidden';
}

// annoying detail: IE and NS6 store elt.top and elt.left as strings.
function moveBy(elt,deltaX,deltaY) {
 elt.left = parseInt(elt.left) + deltaX;
 elt.top = parseInt(elt.top) + deltaY;
}

function toggleVisible(divname) {
 divstyle = getDivStyle(divname);
 if (divstyle.visibility == 'visible' || divstyle.visibility == 'show') {
   divstyle.visibility = 'hidden';
 } else {
   fixPosition(divname);
   divstyle.visibility = 'visible';
 }
}

function setPosition(elt,positionername,isPlacedUnder) 
{
	var positioner;
 	if (isIE) 
 	{
  		positioner = document.all[positionername];
 	} 
 	else 
 	{
  		if (isDOM) 
  		{
    		positioner = document.getElementById(positionername);
  		} 
  		else 
  		{
	    	// not IE, not DOM (probably NS4)
	    	// if the positioner is inside a netscape4 layer this will *not* find it.
    		// I should write a finder function which will recurse through all layers
    		// until it finds the named image...
    		positioner = document.images[positionername];
  		}
 	}
 	
	if((navigator.platform.indexOf('Mac') != -1) && !((!document.layers) && (navigator.userAgent.indexOf('Netscape')!=-1))) 
	{
		elt.left = getAbsX(positioner) + 167;
	}
	else
	{
		elt.left = getAbsX(positioner) + 158;
		//elt.top = getAbsY(positioner) + (isPlacedUnder ? positioner.height : 0);
	}
}


// fixPosition() attaches the element named eltname
// to an image named eltname+'Pos'
//
function fixPosition(divname) 
{
	divstyle = getDivStyle(divname);
	positionerImgName = 'links';
 	// hint: try setting isPlacedUnder to false
 	isPlacedUnder = true;
 	if (isPlacedUnder) 
 	{
  		setPosition(divstyle,positionerImgName,true);
 	} 
 	else 
 	{
  		setPosition(divstyle,positionerImgName)
 	}
}

// fixPositions() puts everything back in the right place after a resize.
function fixPositions()
{
 // add a fixPosition call here for every element
 // you think might get stranded in a resize/reflow.
 fixPosition('mookie');
}