text:  /* Function printf(format_string,arguments...)
   * Javascript emulation of the C printf function (modifiers and argument types 
   *    "p" and "n" are not supported due to language restrictions)
   *
   * Copyright 2003 K&L Productions. All rights reserved
   * http://www.klproductions.com 
   *
   * Terms of use: This function can be used free of charge IF this header is not
   *               modified and remains with the function code.
   * 
   * Legal: Use this code at your own risk. K&L Productions assumes NO resposibility
   *        for anything.
   ********************************************************************************/
  function sprintf(fstring)
    { var pad = function(str,ch,len)
        { var ps='';
          for(var i=0; i<Math.abs(len); i++) ps+=ch;
          return len>0?str+ps:ps+str;
        }
      var processFlags = function(flags,width,rs,arg)
        { var pn = function(flags,arg,rs)
            { if(arg>=0)
                { if(flags.indexOf(' ')>=0) rs = ' ' + rs;
                  else if(flags.indexOf('+')>=0) rs = '+' + rs;
                }
              else
                  rs = '-' + rs;
              return rs;
            }
          var iWidth = parseInt(width,10);
          if(width.charAt(0) == '0')
            { var ec=0;
              if(flags.indexOf(' ')>=0 || flags.indexOf('+')>=0) ec++;
              if(rs.length<(iWidth-ec)) rs = pad(rs,'0',rs.length-(iWidth-ec));
              return pn(flags,arg,rs);
            }
          rs = pn(flags,arg,rs);
          if(rs.length<iWidth)
            { if(flags.indexOf('-')<0) rs = pad(rs,' ',rs.length-iWidth);
              else rs = pad(rs,' ',iWidth - rs.length);
            }    
          return rs;
        }
      var converters = new Array();
      converters['c'] = function(flags,width,precision,arg)
        { if(typeof(arg) == 'number') return String.fromCharCode(arg);
          if(typeof(arg) == 'string') return arg.charAt(0);
          return '';
        }
      converters['d'] = function(flags,width,precision,arg)
        { return converters['i'](flags,width,precision,arg); 
        }
      converters['u'] = function(flags,width,precision,arg)
        { return converters['i'](flags,width,precision,Math.abs(arg)); 
        }
      converters['i'] =  function(flags,width,precision,arg)
        { var iPrecision=parseInt(precision);
          var rs = ((Math.abs(arg)).toString().split('.'))[0];
          if(rs.length<iPrecision) rs=pad(rs,' ',iPrecision - rs.length);
          return processFlags(flags,width,rs,arg); 
        }
      converters['E'] = function(flags,width,precision,arg) 
        { return (converters['e'](flags,width,precision,arg)).toUpperCase();
        }
      converters['e'] =  function(flags,width,precision,arg)
        { iPrecision = parseInt(precision);
          if(isNaN(iPrecision)) iPrecision = 6;
          rs = (Math.abs(arg)).toExponential(iPrecision);
          if(rs.indexOf('.')<0 && flags.indexOf('#')>=0) rs = rs.replace(/^(.*)(e.*)$/,'$1.$2');
          return processFlags(flags,width,rs,arg);        
        }
      converters['f'] = function(flags,width,precision,arg)
        { iPrecision = parseInt(precision);
          if(isNaN(iPrecision)) iPrecision = 6;
          rs = (Math.abs(arg)).toFixed(iPrecision);
          if(rs.indexOf('.')<0 && flags.indexOf('#')>=0) rs = rs + '.';
          return processFlags(flags,width,rs,arg);
        }
      converters['G'] = function(flags,width,precision,arg)
        { return (converters['g'](flags,width,precision,arg)).toUpperCase();
        }
      converters['g'] = function(flags,width,precision,arg)
        { iPrecision = parseInt(precision);
          absArg = Math.abs(arg);
          rse = absArg.toExponential();
          rsf = absArg.toFixed(6);
          if(!isNaN(iPrecision))
            { rsep = absArg.toExponential(iPrecision);
              rse = rsep.length < rse.length ? rsep : rse;
              rsfp = absArg.toFixed(iPrecision);
              rsf = rsfp.length < rsf.length ? rsfp : rsf;
            }
          if(rse.indexOf('.')<0 && flags.indexOf('#')>=0) rse = rse.replace(/^(.*)(e.*)$/,'$1.$2');
          if(rsf.indexOf('.')<0 && flags.indexOf('#')>=0) rsf = rsf + '.';
          rs = rse.length<rsf.length ? rse : rsf;
          return processFlags(flags,width,rs,arg);        
        }  
      converters['o'] = function(flags,width,precision,arg)
        { var iPrecision=parseInt(precision);
          var rs = Math.round(Math.abs(arg)).toString(8);
          if(rs.length<iPrecision) rs=pad(rs,' ',iPrecision - rs.length);
          if(flags.indexOf('#')>=0) rs='0'+rs;
          return processFlags(flags,width,rs,arg); 
        }
      converters['X'] = function(flags,width,precision,arg)
        { return (converters['x'](flags,width,precision,arg)).toUpperCase();
        }
      converters['x'] = function(flags,width,precision,arg)
        { var iPrecision=parseInt(precision);
          arg = Math.abs(arg);
          var rs = Math.round(arg).toString(16);
          if(rs.length<iPrecision) rs=pad(rs,' ',iPrecision - rs.length);
          if(flags.indexOf('#')>=0) rs='0x'+rs;
          return processFlags(flags,width,rs,arg); 
        }
      converters['s'] = function(flags,width,precision,arg)
        { var iPrecision=parseInt(precision);
          var rs = arg;
          if(rs.length > iPrecision) rs = rs.substring(0,iPrecision);
          return processFlags(flags,width,rs,0);
        }
      farr = fstring.split('%');
      retstr = farr[0];
      fpRE = /^([-+ #]*)(\d*)\.?(\d*)([cdieEfFgGosuxX])(.*)$/;
      for(var i=1; i<farr.length; i++)
        { fps=fpRE.exec(farr[i]);
          if(!fps) continue;
          if(arguments[i]!=null) retstr+=converters[fps[4]](fps[1],fps[2],fps[3],arguments[i]);
          retstr += fps[5];
        }
      return retstr;
    }
  /* Function sprintf() END */  