<!--
function validate(which) {
var pass=true;
var ok=false;     
var make=document.isc.maketext.value
var model=document.isc.modeltext.value
var firstname=document.isc.firstname.value
var lastname=document.isc.lastname.value
var phone=document.isc.phone.value
var email=document.isc.email.value
var state=document.isc.state.value
if (make==""){   
   alert("Please select a make.");
   return false;
   }
if (model==""){   
   alert("Please select a model.");
   return false;
   }
if (firstname==""){   
   alert("Please enter your first name.");
   return false;
   }
if (lastname==""){   
   alert("Please enter your last name.");
   return false;
   }

if (state=="--"){   
   alert("Please select your state.");
   return false;
   }
if ((phone=="")||(phone.length<10)){   
   alert("Please enter your phone number.");
   return false;
   }
re=/@/;
re2=/\./; 
if (!re.test(email)){
   alert("Please enter a valid email address.");
   return false;
   }
if (!re2.test(email)){
   alert("Please enter a valid email address.");
   return false;
   }
return true;
}
//-->