function Renew(){

var n = document.form1.name.value;
var c = document.form1.city.value;
var s = document.form1.state.value;
var e = document.form1.email.value;

var control=0;
var displayText="Please complete the following fields:\n\n ";

if(n==""){
displayText = displayText+" - Property name \n ";
control=1;
}

if(c==""){
displayText = displayText+" - City \n ";
control=1;
}

if(s==""){
displayText = displayText+" - State \n ";
control=1;
}

if(e==""){
displayText = displayText+" - E-mail \n ";
control=1;
}

if(control=="0")
{
document.form1.action="renew1.php";
document.form1.submit();
}else{
alert(displayText);
}
}