"{" & vbCrLf & _

" var Price = document.getElementById('" & txtUnitPrice.ClientID & "');" & vbCrLf & _

" Qty = document.getElementById('" & txtQty.ClientID & "');" & vbCrLf & _

" document.getElementById('" & txtTotal.ClientID & "').value = Total.value;" & vbCrLf & _

"}", True)

All I am adding the above JS script onto my content page in ASP.Net. The content page is using a Master Page. Everything in the above script works just fine, but I keep getting an error "UNDEFINED" on Total? Why oh why am I getting this error, please help me! This is driving me nuts! The alert is there just for testing/debugging purposes. The other two fields Price and Qty display just fine without any errors. All three of these items are textboxes on my web form.

Thanks!

Total is a variable. It holds the result of a multiplicattion. Hence you can't have Total.value. So, it should be like:

Total = Qty.value * Price.value;

document.getElementById('" & txtTotal.ClientID & "').value = Total;

And replace Total.value with Total inside the alert too.

Thanks so much! That worked like a charm!