function mv_validate_login() {
		if(document.login_form.user_name.value.length < 1){
			alert('Please enter your user name.');
			document.login_form.user_name.focus();
			return false;
		}
		if(document.login_form.password.value.length < 1){
			alert('Please enter your password.');
			document.login_form.password.focus();
			return false;
		}
}

function mv_validate_offer() {
		if(document.form1.title.value.length < 1){
			alert('Please title of your offer.');
			document.form1.title.focus();
			return false;
		}
		if(document.form1.start_date.value.length < 1){
			alert('Please enter start date of an offer.');
			document.form1.start_date.focus();
			return false;
		}
		if(document.form1.end_date.value.length < 1){
			alert('Please enter end date of an offer.');
			document.form1.end_date.focus();
			return false;
		}
}