Hello everyone, Thanks for suggesting some great documents last time. But after looking up in AcroJS Guide, and PDF Reference , etc., I still don't know how can I use special fonts in a JavaScript field. My JS code is: ------------------------------------------------------------------------------------------ function start_clock() { var thetime=new Date(); var nhours=thetime.getHours(); var nmins=thetime.getMinutes(); var nsecn=thetime.getSeconds(); if (nhours<0) nhours="0"+nhours; if (nsecn<10) nsecn="0"+nsecn; if (nmins<10) nmins="0"+nmins; font.Digital = font.CourBI ; vv = this.getField("time.clock") ; if (vv) { vv.value = nhours+":"+nmins+":"+nsecn; vv.readonly = true ; vv.textColor = color.red ; vv.textFont = font.Digital ; // font.TimesBI Cour HelvB Symbol ZapfD this.dirty = false }} timeout=app.setInterval('start_clock()',1000); ------------------------------------------------------------------------------------------ I guess there are already some definitions about ``font.CourBI'' but where can I find the original code of the definition which I can imitate it to create a new font. Thanks -- Sincerely yours, Chen ---------------------------------------------------------------- Zhi-chu Chen | Shanghai Synchrotron Radiation Facility No. 2019 | Jialuo Rd. | Jiading | Shanghai | P.R. China tel: 086 21 5955 3405 | zhichu.chen.googlepages.com | www.sinap.ac.cn ----------------------------------------------------------------