Putting javascript into a field

Hi -
I use an email address obfuscater called hivemail enkoder to try to prevent email addresses being harvested from my site (I have to put customer email addresses on the site and I don't want this to result in them getting hugely increased levels of spam).

All it does is convert the email address and a couple more fields (email popup text, email title etc) into a field of gobbledegook, which is translated into an email link by javascript when someone loads the page in their browser.

I'm building the page that is going to include this email address, and I'm having problems getting it to be included properly into a field. If I input it as a wysiwyg field or text box it puts <br /> in at the end of every line. Can anyone suggest a way I can create a field that will exactly implant this code into a page?

Here's what the original looks like:

<script type="text/javascript">

function hivelogic_enkoder(){var kode=
"kode=\";)'':)1-htgnel.edok(tArahc.edok?htgnel.edok<i(+x=edok})i(tArahc.edo"+
"k+)1+i(tArahc.edok=+x{)2=+i;)1-htgnel.edok(<i;0=i(rof;''=x;\\\"=xdeko)}(cd"+
"eCoarChomfrg.intr=Sx+8;12+=)c<0(cif3;)-(iAtdeCoarche.od=k{c+)i+h;gten.ldek"+
"oi<0;i=r(fo';=';x>\\\"\\\\*,=*4,k0jwhq1oghnrw+uDkd1fghnrkBjwhq1oghnrl?.+@{"+
"ghnr00\\\\\\\\0l,w+uDkd1fghnr,..4+lDwdufkh1rg@n{.,~@5l.,>04wkqjohh1rg+nl?3"+
">l@u+ir*>@*>{,%*>,*0=w4qkojhhr1+gDndwfuhkr1Bgwnqkojhhr1?g+n{lh.r@0g00n\\\\"+
"\\\\,l+wDudkf1hgrn.,4.l+wDudkf1hgrn@.{~,5@.l>,40kwjqho1hgrn+?l>3@l+uri>**@"+
"{>%,*_+*lqmr,1h+uvyhuh,1**w+olvsh1rg@nghnr%>g__fp_qr1xuhww+z_lh__%___dk_h?"+
"@#\\\\_ui__________%___do_rpNl|wZ=wdl1jdvoxqkCprwwqdjsyrx1Brx1mnfv@e\\\\\\"+
"\\hw\\\\\\\\HVSp#phhevulk#sri#urVwxdksprw#\\\\\\\\\\\\\\\\Fq_HG__________%"+
"___ww_h#_lo__@__%_______h__do_Np|l_#d__________%___Hd_oANp|l2#Ad_?d__%___>"+
"@__,%_h_rg@n_%hgrn@%ghnr=\\\"\\\\deko\\\"=edok\";kode=kode.split('').rever"+
"se().join('')"
;var i,c,x;while(eval(kode));}hivelogic_enkoder();

</script>