function show(div_id) {
	var divs = new Array('div_login_tips','div_sign_up', 'div_retrieve');
	
	for (i=0; i < divs.length; i++) {
		document.getElementById(divs[i]).style.display="none";
	}
	
	document.getElementById(div_id).style.display="";
	if(div_id=="div_sign_up"){
		document.getElementById("rightimage").src = '/files/images/layout/icons/knap_pil_login_ned.jpg';
		document.getElementById("rightimage2").src = '/files/images/layout/icons/knap_pil_login_hoejre.jpg';	
	}
	if(div_id=="div_retrieve"){
		document.getElementById("rightimage2").src = '/files/images/layout/icons/knap_pil_login_ned.jpg';
		document.getElementById("rightimage").src = '/files/images/layout/icons/knap_pil_login_hoejre.jpg';
	}
}

function validate(form) {
	var valid = true;
	var str_alert = 'Fields that needs to have a value\n';
		
	if (form['account[company]'].value == '') {
		str_alert = str_alert+'\nCompany name';
		valid = false;
	}
	if (form['account[first_name]'].value == '') {
		str_alert = str_alert+'\nFirst name';
		valid = false;
	}
	if (form['account[last_name]'].value == '') {
		str_alert = str_alert+'\nLast name';
		valid = false;
	}
	if (form['account[email]'].value == '') {
		str_alert = str_alert+'\nEmail';
		valid = false;
	}
	if (form['new_password'].value == '') {
		str_alert = str_alert+'\nPassword';
		valid = false;
	}
	if (valid == false) {
		alert(str_alert);
	}
	return valid;
}