/*<script>
 */


/******************************************************************
popup windows
*******************************************************************/
	
		var winHeight = 400;
		var winWidth = 500;
		var first = true;
		var popupwin = null;
		var xpos = 0;var ypos = 0;
		var winString = "width=" + winWidth + ",height=" + winHeight + ",status=no,resizable=yes,scrollbars=yes,left=" + xpos + ",top=" + ypos;
	
		function winOpen(url) {
			if (first) {
				popupwin = window.open(url, "", winString)
				first = false
			} else {
				if ( popupwin != null && !popupwin.closed && previous_url == url ) { popupwin.focus(); }
				else {
					if (popupwin.closed) {
						popupwin = window.open(url, "", winString);
						popupwin.focus();
						first = false
					} else {
						popupwin.location = url;
						popupwin.focus();
						first = false
					}
				}	
			}
			previous_url = url ;
		}