function add_qty(inpid){



	num = document.getElementById(inpid).value;

	

	num++;

	

	if(num >= 999){

		num = 999;	

	}

	

	document.getElementById(inpid).value = num;

	

}



function remove_qty(inpid){



	num = document.getElementById(inpid).value;

	

	num--;

	

	if(num <= 1){

		num = 1;	

	}

	

	document.getElementById(inpid).value = num;

	

}