Validate field if something is in it

[urbanrf]

Hello all,

I am trying to write some Javascript to validate a certain field. I have it working but I want to make it only validate if there is something in that field. I've looked at different tutorials online but I can't seem to get it to work. This is what I have so far:

if((form.fieldname.value.length < 5))
{alert("Field must have at least 5 characters!");
return false;
}


I don't want this statement to run unless there is something entered into the field.Thanks.

[Padonak]

var val = document.forms['formname'].elements['fieldname'].value;
if((val.length > 0) && (val.length < 5))