convolution code for matlab

hi..
here i m sending correct convolution code for
matlab...%*************************************************************************
%                       Convolution of Two signals
%**************************************************************************
%DKV
clc;
close all;
clear all;
x=[1,2,3,4]; %first signal
h=[1,2,3,4,5]; %second signal
N1=length(x);
N2=length(h);
X=[x,zeros(1,N2)];% padding of N2 zeros
H=[h,zeros(1,N1)];% padding of N1 zeros
    for i=1:N1+N2-1
        y(i)=0;
      for j=1:N1
          if(i-j+1>0)
        y(i)=y(i)+X(j)*H(i-j+1);
          else
          end
      end
    end
    stem(y);
    ylabel('y[n]');
    xlabel('----->n');
    title('Convolution of Two Signal');