function showOptInventory() {

    if (typeof(optArray) != 'undefined') {

        var table  = document.getElementById('product-info-table');
        var inputs = table.getElementsByTagName('input');
    
        if (optArray != false) {
                       
            for (i=0; i < optArray.length; i++){
            
                var o = optArray[i];
                var d = inputs[i].parentNode;
                var v = inputs[i].value;
                var q = o.quantity;
                var s = o.size;
                
                if (o && d && q < 1 && (v * 1) == (s * 1)) {
                                  
                    d.style.display='none';
                                  
                }
                                  
            }
            
        } else {
            
            table.deleteRow(table.rows.length - 1);
            table.deleteRow(table.rows.length - 1);
            table.deleteRow(table.rows.length - 1);
            
            newRow  = table.insertRow(-1);
            newCell = newRow.insertCell(-1);
            
            newCell.colSpan          = '2';
            newCell.style.textAlign  = 'center';
            newCell.style.color      = '#f00';
            newCell.style.fontWeight = 'bold';
            newCell.innerHTML        = 'This item is currently sold out.';
            
        }
    
        return;
    
    }

}