//typical execution:   href="javascript:newwindow(450,275,'crdpass.htm','scrollbars=no');"  NOTE: would need \' in certain cases

function newwindow(width,height,fname,option) 
{ 
var ww=width;
var wh=height;
var op=','+option;
var wl = (screen.width/2)-(ww/2);
var wt = (screen.height/2)-(wh/2);
var size = "width="+ww+",height="+wh+",left="+wl+",top="+wt+",screenX="+wl+",screenY="+wt+op;
window.open(fname,"",size); 
}