function check_agree(id, status) {
	f = document.join_form;
	if (f.terms.checked == true) {
		var flag = status == 1 ? 1 : 0;
		changePicture(flag);		
		if(status == 2)
				submit_form(id);
	}	
	else {
			changePicture(flag);		
			if(status == 2)
				return false;
	}	
}

function submit_form(id) {
	document.getElementById(id).submit();
}

function changePicture(id) {	
	document.getElementById('submit_picture').src = id == 1 ? '/img/submit_contact_us_on.gif' : '/img/submit_contact_us.gif'
}