function MM_openBrWindow(theURL,winName,features,scrollbars,resizable) { //v2.0
window.open(theURL,winName,features,scrollbars,resizable);
}

function openWin(){
  newWin = window.open('present_popup.php','sampleWin','width=740,scrollbars=yes,status=no,toolbar=no,location=yes,menubar=no,resizable=yes');
  newWin.focus();
}