var xwin=0;
function popup(file){

     xwin=window.open(file,"","width=550,height=550,scrollbars=yes,resizable=no,status=yes","replace=yes");	
}

function popupMid(file){

     xwin=window.open(file,"","width=620,height=400,scrollbars=yes,resizable=no,status=yes","replace=yes");	
}

function popupMax(file){

     xwin=window.open(file,"","width=760,height=400,scrollbars=yes,resizable=no,status=yes","replace=yes");	
}

function popupWithParms(file,xw,xh){

     xwin=window.open(file,"popupWithParm","width="+xw+",height="+xh+",scrollbars=yes,resizable=no,status=yes","replace=yes");	
}