//\  Copyright Erik Bosrup, Customizations by CDI.  All rights reserved. Contact: support.urgent@gmail.com for legal usage

if (typeof olInfo == 'undefined' || typeof olInfo.meets == 'undefined' || !olInfo.meets(4.10)) alert('overLIB 4.10 or later is required for the Center Popup Plugin.');
else {
registerCommands('centerpopup,centeroffset');

if (typeof ol_centerpopup == 'undefined') var ol_centerpopup = 0;
if (typeof ol_centeroffset == 'undefined') var ol_centeroffset = '0';

var o3_centerpopup = 0;
var o3_centeroffset = '0';

function setCenterPopupVariables() {
	o3_centerpopup = ol_centerpopup;
	o3_centeroffset = ol_centeroffset;
}
function parseCenterPopupExtras(pf,i,ar) {
	var k = i,v;

	if (k < ar.length) {
		if (ar[k] == CENTERPOPUP) { eval(pf + 'centerpopup = (' + pf + 'centerpopup == 0) ? 1 : 0'); return k; }
		if (ar[k] == CENTEROFFSET) { k = opt_MULTIPLEARGS(++k,ar,(pf + 'centeroffset')); return k; }
	}

	return -1;
}
function centerPopupHorizontal(browserWidth, horizontalScrollAmount, widthFix) {
	if (!o3_centerpopup) return void(0);

	var vdisp = o3_centeroffset.split(',');
	var placeX, iwidth = browserWidth, winoffset = horizontalScrollAmount;
  var pWd = parseInt(o3_width);

	placeX = winoffset + Math.round((iwidth - widthFix - pWd)/2) + parseInt(vdisp[0]);
	if(typeof o3_followscroll != 'undefined' && o3_followscroll && o3_sticky) o3_relx = placeX;

	return placeX;
}
function centerPopupVertical(browserHeight,verticalScrollAmount) {
	if (!o3_centerpopup) return void(0);

	var placeY, iheight = browserHeight, scrolloffset = verticalScrollAmount;
	var vdisp = o3_centeroffset.split(',');
	var pHeight = (o3_aboveheight ? parseInt(o3_aboveheight) : (olNs4 ? over.clip.height : over.offsetHeight));

	placeY = scrolloffset + Math.round((iheight - pHeight)/2) + (vdisp.length > 1 ? parseInt(vdisp[1]) : 0);
	if(typeof o3_followscroll != 'undefined' && o3_followscroll && o3_sticky) o3_rely = placeY;

	return placeY;
}
registerRunTimeFunction(setCenterPopupVariables);
registerCmdLineFunction(parseCenterPopupExtras);
registerHook('horizontalPlacement',centerPopupHorizontal,FCHAIN);
registerHook('verticalPlacement', centerPopupVertical, FCHAIN);
if(olInfo.meets(4.10)) registerNoParameterCommands('centerpopup');
}