function round(number){
return Math.round(number*Math.pow(10,2))/Math.pow(10,2);}
function scan(cc_number)
{
if(cc_number==null)cc_number = "";
testc=0;
new_ccnumber="";
cclen = cc_number.length;
if((cc_number.indexOf("$") != -1) || (cc_number.indexOf("£") != -1) || (cc_number.indexOf("¬") != -1) || (cc_number.indexOf("\u20ac") != -1))
{
startc = cc_number.indexOf("$")+1;
if(startc==0)startc = cc_number.indexOf("£")+1;
if(startc==0)startc = cc_number.indexOf("¬")+1;
for(n=startc;n<cclen;n++)
   {
   tc = cc_number.substring(n,n+1);
   if(tc == "0" || tc == "1" || tc == "2" ||tc == "3" || tc == "4" ||tc == "5" || tc == "6"  || tc == "7" || tc == "8" || tc == "9" || tc == "." )
   new_ccnumber = new_ccnumber + tc;
   else
   n = cclen;
   }
}
if(new_ccnumber == "")new_ccnumber=0;
return new_ccnumber;
}