b=0;

function validate(form) {
	if (b==1) {
		form.reset();
		form.name.focus();
		b=0;
	return false;
	} else {
		if (form.name.value.length<3) {alert("Please enter your name!");return false;}
		if (form.sname!=null) {if (form.sname.value.length<3) {alert("Please enter your last name!");return false;}}
		if (form.phone!=null) {if (form.phone.value.length<6) {alert("Please enter your phone number!");return false;}}
		s=form.email.value; p=s.indexOf(" "); k=s.indexOf("@"); K=s.indexOf("."); l=s.length;
		if ((l<5) || (p>=0) || (k<=0) || (k>=l-2) || (k>K) || (K<=0) || (K>=l-1)) {alert("Please enter your email address!");return false;}
		if (form.msg.value.length<5) {alert("Please enter your message/question!");return false;}
	}
}

function op(){
	window.open("calc.html","Mortgage","scrolbar=no,menubar=no,status=no,directory=no,width=800,height=480,center=true,htkeys=no");
}