function CreatRandom(iran)
{
	var irandom =0;
	while(true)
	{
		irandom = Math.round(Math.random( )*iran);
		if (irandom!=0 && irandom!=iran)
			break;
	}
	return irandom;
}

function getRandom(a)
{
	var s = '';
	var dup = true;
	var temp = 0;
	var arandom = new Array();
		
	for(var i=1;i<a;i++)
	{
		while(true)
		{
			dup = false;
			temp = CreatRandom(a);
			
			for(var j=1;j<a;j++)
			{
				if (temp == arandom[j])
					dup=true;
			}
			
			if (dup)
				temp = CreatRandom(a);
			else
			{
				arandom[i] = temp;
				break;
			}
		}
	}
	
	/*for(var j=1;j<a;j++)
	{
		s += j + ' - ' +arandom[j] + '; ';
	}
	str.innerHTML = s;*/
	return arandom;
}