<#SessionVariables#>
$url = "https://url"
$user = "user"
$pass = "pass"

<#ObjectDeclarations#>
$wshell = New-Object -ComObject wscript.shell

<#Launch Browser#>
$browser = new-object -ComObject "InternetExplorer.Application"
$browser.navigate2($url)
$browser.Visible = $true
while($ie.busy) { start-sleep 1 }
$doc = $browser.document
$frm = $doc.forms["loginForm"]

<#Login to Session#>

$loginArray = @(
             ("username",$user),
             ("password",$pass)
   )


for($i=0;$i -lt $loginArray.Length; $i++)
{
  $el = $doc.getElementById($loginArray[$i][0]);
  $el.focus();
  start-sleep -Seconds 3;
  $el.value=$loginArray[$i][1];

}

$el.oncellchange();

$event = $doc.createEvent('Event');
  $event.initEvent('input',$true,$true);
  $el.dispatchEvent($event);