check if form field is on page

[rkoya]

Hi,

I have a number of fields that are bought in dynamically based on selection from the previous screen. How do I check to see if a certain form field is on the page or not.

thanks

 

[theniteowl]

An easy way is to use it in an if statement.
Say you are checking for a field with an ID of mytest

if (document.getElementById('mytest'))
alert('mytest exists');
else
alert('mytest does not exist');


At my age I still learn something new every day, but I forget two others.

 

[trollacious]

Something like this:

if (document.getElementsByName('your element name here').length > 0)
  {
  //your code here if element exists
  }

Lee

 

[trollacious]

There's almost always more than one way to accomplish something, as you can see. #

Lee

 

[rkoya]

Thanks worked perfectly.