function trim(str) {
	return str.replace(/^\s+|\s+$/g, '');
}


function validateEmail(vfld){
	  var tfld = trim(vfld.value);
	  var email = /^[^@]+@[^@.]+\.[^@]*\w\w$/

	  if (tfld == "" || !email.test(tfld)) {
		  return false;
	  }
	  return true;
}

function checkPresent(str){
	if(trim(str) != ''){
		return true;
	}
	return false;
}


function checkLength(mystr, minlenght){
	var str = trim(mystr.value);

	if(str.length >= minlenght){
		return true;
	}
	return false;
}