map.GetCenter seemed to return wrong value

I thought that map.GetCenter was returning wrong values (to see the effect use http://www.svrsig.org/cgi-bin/gemap.cgi lat=52&long=-4&zoom=6 which places Edwinsford at the centre. Move the mouse over the map and the centre is shown to be 52deg4'2.2"N instead of 52degN.

The problem is that the javascript function 'parseInt()' returns 4 instead of zero for the argument parseInt(4.547473508864641e-13). Now how do I sort that out

The relevant finction is:

function latmin(cin) {);
var ain = 0;
var bin = 0;
if (cin>0) {
ain = (60*cin) % 60;
bin = (36000*cin) % 600;
return " "+parseInt(cin)+"°"+parseInt(ain)+"'"+parseInt(bin/10)+'.'+parseInt((bin) % 10)+'"N';
}
cin = -cin;
ain = (60*cin) % 60;
bin = (36000*cin) % 600;
return " "+parseInt(cin)+"°"+parseInt(ain)+"'"+parseInt(bin/10)+'.'+parseInt((bin) % 10)+'"S';
}

which returns 52deg4'2.2"N for latmin(52.00000000000001)

Any ideas please