var i = 0;
popup = function( url, title, w, h )
{
var settings = 'width=' + w + ',height=' + h;
NewWin = new Array();
NewWin[i] = window.open( '', i, settings );
NewWin[i].document.open();
NewWin[i].document.writeln( ''+ title +'
click to close window' );
NewWin[i].document.close();
i++;
}