<!--

function validate_form ( )
{
    valid = true;
if (document.form1.count.value ==null)
{
alert ("Please add a mouthpiece to compare")
}
else{
    if ( document.form1.rim.selectedIndex == "0" )
    {
        alert ( "Please select a rim on Mouthpiece #1");
        valid = false;
    }
  if ( document.form1.cup.selectedIndex == "0" )
    {
        alert ( "Please select a cup on Mouthpiece #1" );
        valid = false;
    }
  if ( document.form1.shank.selectedIndex == "0" )
    {
        alert ( "Please select a Shank on Mouthpiece #1" );
        valid = false;
    }

 if(document.form1.rim1 != null)
	{
	if ( document.form1.rim1.selectedIndex == "0" )
    {
        alert ( "Please select a rim on Mouthpiece #2");
        valid = false;
    }
  if ( document.form1.cup1.selectedIndex == "0" )
    {
        alert ( "Please select a cup on Mouthpiece #2" );
        valid = false;
    }
  if ( document.form1.shank1.selectedIndex == "0" )
    {
        alert ( "Please select a Shank on Mouthpiece #2" );
        valid = false;
    }
}
 if(document.form1.rim2!= null)
	{
	if ( document.form1.rim2.selectedIndex == "0" )
    {
        alert ( "Please select a rim on Mouthpiece #3");
        valid = false;
    }
  if ( document.form1.cup2.selectedIndex == "0" )
    {
        alert ( "Please select a cup on Mouthpiece #3" );
        valid = false;
    }
  if ( document.form1.shank2.selectedIndex == "0" )
    {
        alert ( "Please select a Shank on Mouthpiece #3" );
        valid = false;
    }

    }
 if(document.form1.rim3!= null)
	{
	if ( document.form1.rim3.selectedIndex == "0" )
    {
        alert ( "Please select a rim on Mouthpiece #4");
        valid = false;
    }
  if ( document.form1.cup3.selectedIndex == "0" )
    {
        alert ( "Please select a cup on Mouthpiece #4" );
        valid = false;
    }
  if ( document.form1.shank3.selectedIndex == "0" )
    {
        alert ( "Please select a Shank on Mouthpiece #4" );
        valid = false;
    }

    }
 if(document.form1.rim4!= null)
	{
	if ( document.form1.rim4.selectedIndex == "0" )
    {
        alert ( "Please select a rim on Mouthpiece #5");
        valid = false;
    }
  if ( document.form1.cup4.selectedIndex == "0" )
    {
        alert ( "Please select a cup on Mouthpiece #5" );
        valid = false;
    }
  if ( document.form1.shank4.selectedIndex == "0" )
    {
        alert ( "Please select a Shank on Mouthpiece #5" );
        valid = false;
    }
}
    }
    return valid;
}

//-->