// Generic popup generator
var popUpWin=0;
function windowPopUp(URLStr, left, top, width, height) {
	if(popUpWin) {
		if(!popUpWin.closed) popUpWin.close(); // Close the new window
	}
	popUpWin = open(URLStr, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbar=no,resizable=yes,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
	return false; // to prevent the anchor from following its href link
}

// Hides or shows the specified element
function toggleShowHide(elementId) {
  var element = document.getElementById(elementId);
  var displayStyle = element.style.display;
  if (displayStyle == 'block'){
  	  element.style.display = 'none';
  }
  else{
  	element.style.display = 'block';
  }

}