Question

I get a null error on the line this

document.getElementById("Attachment" + x).style.display = "none";

I really dont want to write this out 5 times. The line does work if i do this.

document.getElementById("Attachment1").style.display = "none";

What am i missing here? To keep this short i only included the loop where ther error is.

for (x = 0; x < 5; x++)
{

  if(showHideArray[x] &gt; 0) 
  {
    document.getElementById("Attachment" + x).style.display = "none";
  }
  else {
        document.getElementById("Attachment" + x + "If").style.display = "none";
       }

}

Answer 1

You probably don’t have an element with ID Attachment0.