Random array of unique numbers

Hi, I'm trying to take the value of elements in one array and scramble 
them up so that a new array contains a random version of the first with 
out duplicates. I thought the following code would do but I'm not 
geeting the second array filled with the first ones elements.

#include <iostream.h>
#include <time.h>
void main()
{
	int i = 0, j = 0;
	int intSeq[7] = {1,2,3,4,5,6,7};
	int intRand[7] = {0,0,0,0,0,0,0};

	for (i = 0; i <= 6; i++)
	{
		while(intRand[j] == 0)
		{
			srand(time(NULL));
			j = random(7);
			intRand[j] = intSeq[i];
		}
	}
/*From here on is code for output to display*/
	cout << "intSeq[] = ";
	for (i = 0; i <= 6; i++)
	{
		cout << intSeq[i] << " ";
	}
	cout << endl;
	cout << "intRand[] = ";
	for (i = 0; i <= 6; i++)
	{
		cout << intRand[i] << " ";
	}
	cout << endl << endl;

	system("pause");//Function for closing salutation.
}

The output I get from my code shows assignment of one element only, does 
anyone know where I'm going wrong or have an easy scramble algotithm?

Many thanks for reading, Will.