function validate_add_jobs(formObj) {

	if(formObj.name.value=='') {

		alert('Please enter the member name');
		formObj.name.focus();
		return false;
	}

	if(formObj.company.value=='') {

		alert('Please enter the company name');
		formObj.company.focus();
		return false;
	}

	if(formObj.job_title.value=='') {

		alert('Please enter the job title');
		formObj.job_title.focus();
		return false;
	}
	
	if(formObj.contact_person.value=='') {

		alert('Please enter the contact person');
		formObj.contact_person.focus();
		return false;
	}

	if(formObj.email.value=='') {

		alert('Please enter the email address');
		formObj.email.focus();
		return false;
	}
	
	if(!valid_email_address(formObj.email.value)) {

	   alert("Please enter a valid email address");
	   formObj.email.focus();
	   return false;	

	}
	
	if(!chkRadioBtns(formObj.hours)) {
		alert('Please select the hours');
		return false;
	}
	
	return true;
}


// email checking
function valid_email_address(email) {
  
  var filter=/^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/

  return filter.test(email);

}

//check radio buttons

function chkRadioBtns(RadioBtnObj) {

	for (i = 0; i<RadioBtnObj.length; i++)
	{
		if (RadioBtnObj[i].checked)
		 return true; 
	}

	return false;
}