PopupWin = null;
function OpenWindow( url, name, width, height ) 
{
	var params = "width=" + width + ",height=" + height + ",resizable=1,scrollbars=1,status=1";
	if ( PopupWin != null ) {
		if ( PopupWin.closed ) {
			PopupWin = null;
			PopupWin = window.open( url, name, params );
		} else {
/*
			if ( PopupWin.name != name ) {
				PopupWin.close();
				PopupWin = null;
				PopupWin = window.open( url, name, params );
			} else {
				PopupWin.focus();
			}
*/
			PopupWin.close();
			PopupWin = null;
			PopupWin = window.open( url, name, params );

		}
	} else {
		PopupWin = window.open( url, name, params );
	}
}