function onChangedType(form) {
	if (form.regType.selectedIndex != form.amount.selectedIndex) {
		form.amount.selectedIndex = form.regType.selectedIndex;
  } 	
}

function onChangedAmount(form) {
	if (form.regType.selectedIndex != form.amount.selectedIndex) {
		form.regType.selectedIndex = form.amount.selectedIndex;
  } 	
}

function onChangedAuthor(form) {
  if (form.reg_author.selectedIndex == 0) {
	  form.reg_paper.value = '0';
	  form.reg_paper.disabled=true;		
  } else {
	  form.reg_paper.disabled=false;
      form.reg_paper.value = 'XXXX';
  }
}

function onChangedYesNo( cb, ti ) {
  if (cb.selectedIndex != 0) {
	  ti.disabled=true;	
	  ti.value = '';		  
  } else {
	  ti.disabled=false;
  }
}

function onChangedValueYesNo( cb, ti ) {
  if (cb.selectedIndex == 0) {
	  ti.value = '0';	  
	  ti.disabled=true;		
  } else {
	  ti.disabled=false;
  }
}

function TestSubmitRegistration(form) {
	
	if (form.reg_fullname.value == '') {
	  alert('You must provide your Full Name!');
	  return;	
  } 	
	
  if (form.reg_affiliation.value == '') {
	  alert('You must provide Affiliation Info!');
	  return;	
  } 	
	
  if (form.reg_objective.disabled==false &&  form.reg_objective.value == '') {
	  alert('You must provide your degree objective!');
	  return;	
  } 	
	
  if (form.reg_phone.value == '') {
	  alert('You must provide Contact Phone number!');
	  return;	
  } 		

  if (form.reg_email.value=='' || form.reg_email.value.indexOf('@')<0 || form.reg_email.value.indexOf('.')<0 ) {
	  alert('You must provide a valid contact E-Mail!');
	  return;
  } 
/*
  if (form.reg_street.value == '') {
	  alert('You must provide your street address!');
	  return;	
  } 	
  if (form.city_address.value == '') {
	  alert('You must provide your city!');
	  return;	
  } 	
  if (form.reg_state.value == '') {
	  alert('You must provide your state!');
	  return;	
  } 	


  if ( (form.reg_author.selectedIndex == 1) && (form.reg_paper.value == '' || form.reg_paper.value == '0' || form.reg_paper.value == 'XXXX') ) {
	  alert('If you are an author, you must provide a valid Submission Number!');
	  return;	
  } 	
*/

  form.submit();
}