function swapImg( id, src )
{
	document.getElementById ( id ).src = src;	
}

function view_and_scroll( url, width, height, name )
{
	popupWin = window.open(url, name, 'scrollbars=auto,menubar=no,toolbar=no,width='+ width +',height='+ height +',left=80,top=40');
}
function showhide( showid, hideid ) {
	if ( showid == hideid && document.getElementById( showid ) ) {
		if ( document.getElementById( hideid ).style.visibility == 'hidden' ) {
			hideid = '';
		}
		else {
			showid = '';
		}
	}
  if ( document.getElementById( showid ) ) {
    document.getElementById( showid ).style.visibility = 'visible';
    document.getElementById( showid ).style.display = '';
  }
  if ( document.getElementById( hideid ) ) {
    document.getElementById( hideid ).style.visibility = 'hidden';
    document.getElementById( hideid ).style.display = 'none';
  }
}