function bubble_Sort(a)  
{  
    var swapp;  
    var n = a.length-1;  
    var x=a;  
    do {  
        swapp = false;  
        for (var i=0; i < n; i++)  
        {  
            if (x[i] < x[i+1])  
            {  
               var temp = x[i];  
               x[i] = x[i+1];  
               x[i+1] = temp;  
               swapp = true;  
            }  
        }  
        n--;  
    } while (swapp);  
 return x;   
}  
  
console.log(bubble_Sort([12, 345, 4, 546, 122, 84, 98, 64, 9, 1, 3223, 455, 23, 234, 213]));