function number_format( number, decimals, dec_point, thousands_sep ) {  // Format a number with grouped thousands  
     var i, j, kw, kd, km;  
    
     // input sanitation & defaults  
     if( isNaN(decimals = Math.abs(decimals)) ){  
         decimals = 2;  
     }  
     if( dec_point == undefined ){  
         dec_point = ",";  
     }  
     if( thousands_sep == undefined ){  
         thousands_sep = ".";  
     }  
    
     i = parseInt(number = (+number || 0).toFixed(decimals)) + "";  
    
     if( (j = i.length) > 3 ){  
         j = j % 3;  
     } else{  
         j = 0;  
     }  
	km = (j ? i.substr(0, j) + thousands_sep : "");  
	kw = i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + thousands_sep);  
	kd = (decimals ? dec_point + Math.abs(number - i).toFixed(decimals).replace(/-/, 0).slice(2) : "");  
return km + kw + kd;  
}