function loginCheck(form) {
	
	if(!trim(form.username.value)) {
		alert('Username is empty.');
		return false;
	} else if(trim(form.username.value).match(/[;|\'|\"]/) ) {
		alert('Username should not contain any symbols');
		return false;
	} else if(!trim(form.password.value)) {
		alert('Password is empty.');
		return false;
	} else if(trim(form.password.value).match(/[;|\'|\"]/) ) {
		alert('Password should not contain any symbols.');
		return false;
	} else {
		return true;
	}
}

function mforgetPassword(form) {
	if(!trim(form.email.value)) {
		alert('Email is empty.');
		return false;
	} if(trim(form.email.value).match(/[;|\'|\"]/) ) {
		alert('Symbols (; \' \") are not allow.');
		return false;
	} else {
		return true;
	}
}

function trim(jstr) { 
  var p1 = /^\s+/gi; 
  var p2 = /\s+$/gi 
   
  jstr = jstr.replace(p1,''); 
  jstr = jstr.replace(p2,''); 
  return jstr; 
}