function isCheckboxChecked( formName, fieldName ) {
	var totalChecked = 0;
	for( i=0; i<document.forms[formName].elements[fieldName].length; i++ ){
	   if( document.forms[formName].elements[fieldName][i].checked ) totalChecked = totalChecked + 1;}
	if ( !totalChecked )return false;
	else return true; 
}

function validateRadioButton (formName, fieldName){
	 myOption = -1;
	 for (i=0; i<document.forms[formName].elements[fieldName].length; i++) {
	     if (document.forms[formName].elements[fieldName][i].checked) 
		 	{myOption = i;
		 }
	 }
	 if (myOption == -1) return false;
	  else return true; 
}

function validateDropdown (formName, fieldName)
{
	if ((document.forms [formName].elements[fieldName].selectedIndex) == 0)
            return false;
        else
            return true;
}

function validateMultipleSelect (formName, fieldName) 
{
  var hasElement = false;
  var select = document.forms [formName].elements[fieldName];
  for (var i = 0; i < select.options.length; i++)
    if (select.options[i].selected)
      hasElement = true;
  return hasElement;
}