window.onload=initForm;

function initForm(){
document.getElementById( "species" ).selectedIndex = 0;
/*document.getElementById( "species" ).onchange = getRegions();*/
/* run 1st to initialize to canine */
getRegions();
/*obj = getElementById */


}

function getRegions(){
var catregs = new Array( 'Paw', 'Limb', 'Thorax', 'VD Thorax','Abdomen',
'VD Abdomen', 'Skull', 'Cervical - Spine', 'Shoulder', 'VD Pelvis');
var dogregs = new Array( 'Paw', 'Limb', 'Thorax', 'VD Thorax','Abdomen',
'VD Abdomen', 'Skull', 'Cervical - Spine', 'Shoulder', 'VD Pelvis','Intra-Oral' );
var repregs = new Array( 'Abdomen', 'Skull' );
var selregs = new Array();
 document.getElementById( "region" ).options[ 0 ] = new Option( 'Added' );
//var selspec = this.options[this.selectedIndex].value;
obj = document.getElementById( "species");
selspec = obj.options[ obj.selectedIndex ].value;

if ( selspec != "" ){
  selregs = dogregs;
  if ( selspec == 'Feline' )
    selregs = catregs;
  if ( selspec == 'Reptile' )
    selregs = repregs;
  document.getElementById( "region" ).options.length = 0;

  for ( var i= 0; i < selregs.length; i++ )
    document.getElementById( "region" ).options[ i ] = new Option( selregs[ i ] );

}
}