/* -------------- OPEN POPUP WINDOW --------------------------- */
function openwin(URL,theHeight,theWidth,addScrollBar) {
	var nXpos = (screen.availWidth - theWidth) / 2; 
	var nYpos = (screen.availHeight - theHeight) / 2; 
	var win = window.open(URL, 'popupWin', 'top=' + nYpos + ',left=' + nXpos + ',screenY=' + nYpos + ',screenX=' + nXpos + ',height=' + theHeight + ',width=' + theWidth + ',scrollbars=' + addScrollBar);
	win.focus();
}