Page Comparison

function(){
 	if (gtm.page == "confirmation"){    
	var ids = [];
	for (var i=0;i<gtm.products.length ;i++){
  		ids.push(gtm.products[i].SKU)
	}
             var sku = ids;
} 
else {    
            var sku = 'undefined';
}

return sku;

}

function() {
sku = [];
  for (var i = 0; i < gtm.products.length; i++) {
    var user = gtm.products[i];
    //console.log(user.SKU);
    sku.push(user.SKU_color);
   
}
 // console.log(sku)
  return sku;
}