// Gobal zIndex to insure no more then one element in each layer
var zIndexGlobal = 1000;

// Insure reposition of layers if browser is resized
// TODO: make it relative to its start position.
var divRepositionArray = new Array();

function resizePage()
{
	for(var i=0; i<divRepositionArray.length; i++)
	{
		divReposition(divRepositionArray[i]);
	}
}

// SHOW/HIDE DIV
// Will show a hidden layer and optional hide old layer 
// "divName"			Name of target layer
// "xPos"				The position of the layer from left
// "yPos"				The position of the layer from top
// "closeLowerAccess"	If there should be access to elements below the layer(s)
function divShow(divName, xPos, yPos, closeLowerAccess, darkOutBackground)
{
	var target = document.getElementById(divName);
	var targetLower = document.getElementById('lowerAccessImg');
	
	divRepositionArray.push(divName);
	divReposition(divName, xPos, yPos);

	target.style.zIndex = zIndexGlobal;
	zIndexGlobal++;
	
	if(closeLowerAccess)
		document.getElementById('lowerAccessDiv').style.display = "block";
		
	if(darkOutBackground)
	{
		targetLower.src = "gfx/_000000_alpha50.png";
	
		if(document.all)
			targetLower.className = "ieAlfa";
	}
	else
	{
		targetLower.src = "gfx/_blank.gif";
		targetLower.className = "";
	}
	
	target.style.display = "block";
}
// END

// Will hide a layer
// "divName"			Name of target layer
// "openLowerAccess"	If access to the elements below the layer(s) should be allowed
function divHide(divName, openLowerAccess)
{
	if(document.getElementById('lowerAccessDiv') && openLowerAccess)
		document.getElementById('lowerAccessDiv').style.display = "none";

	document.getElementById(divName).style.display = "none";
	
	for(var i=0; i<divRepositionArray.length; i++)
	{
		if(divRepositionArray[i] == divName)
		{
			divRepositionArray.splice(i,1);
			break;
		}
	}
}
// END


// Reposition popLayer
function divReposition(divName, xPos, yPos)
{
	var targetX = Math.ceil((document.body.clientWidth - Number(document.getElementById(divName).style.width.replace("px","")))/2);
	var targetY = Math.ceil((document.body.clientHeight - Number(document.getElementById(divName).style.height.replace("px","")))/2)
	
	if(xPos && xPos != 0)
		targetX = xPos;
		
	if(yPos && yPos != 0)
		targetY = yPos;
	
	document.getElementById(divName).style.left = targetX;
	document.getElementById(divName).style.top = targetY;
}
// END

// Change row color
function changeRowColor(target, color)
{
	target.bgColor = color;
}
// END

// Toogle selection on select box
function toogleCheckbox(id)
{
	d = document.getElementById(id);
	
	if(d.checked)
		d.checked = false;
	else
		d.checked = true;
}
// END

// Get elements offest from top/left
function rootOffset(target)
{
	var pos = {left: 0, top: 0};
	var e = target;

	//while(e.offsetParent)
	while(e)
	{
		pos.left += e.offsetLeft;
		pos.top += e.offsetTop;
		e = e.offsetParent;
	}
	
	return pos;
}
// END

// POPUP
function openPopUp(url, nameWindow, width, height, clean, resizable)
{
    var strAgent=navigator.userAgent;

	if(clean)
		mywin=window.open(url,nameWindow,'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=' + resizable + ',width=' + width + ',height=' + height);
	else
		mywin=window.open(url,nameWindow,'toolbar=1,location=1,directories=1,status=1,menubar=1,scrollbars=1,resizable=1,width=' + width + ',height=' + height);
		
    if (strAgent.indexOf('MSIE 3')==-1 && strAgent.length!=0)
    {
        mywin.focus();
    }
    
    return mywin;
}
// END

// Get url from page
function getUrl(includeHttp, includeFilename, includeQureystring)
{
	var pageUrl = window.location.hostname;
	
	if(includeHttp)
		pageUrl = "http://" + pageUrl;
	
	if(includeFilename)
	{
		if(includeQureystring)
			pageUrl += window.location.pathname + "?" + window.location.search.substring(1).toLowerCase();
		else
			pageUrl += window.location.pathname;
	}
	else
	{
		if(window.location.pathname.length > 0)
			pageUrl += window.location.pathname.substring(0,window.location.pathname.lastIndexOf("/") + 1);
	}
	
	return pageUrl;
} 
// END