function validateform(){
          
fname1       =document.getElementById("fname").value;
lname1       =document.getElementById("lname").value;
address      = document.getElementById('email').value;
billaddress1 =document.getElementById("billaddress").value;
city1     =document.getElementById("city").value;
state1     =document.getElementById("state").value;
zip1       =document.getElementById("zip").value;
optin1       =document.getElementById("optin");

reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
 

if(fname1==0)
{
	alert("Please enter name");
	return false;
}
else if(fname1.length<3)
{
 alert("Please enter first name");
 return false;
} 

if(lname1==0)
{
	alert("Please enter last name");
    return false;
}	

if(!(reg.test(address))) 
{
  alert("Invalid email address");
  return false;
}  

if(billaddress1==0)
{
alert("Please insert address");
return false;

}

if(city1==0)
{
alert("Please insert city");
return false;
}

if(state1==0)
{
alert("Please insert state");
return false;
}


if(zip1==0)
{
alert("Please insert phone number");
return false;

}

if(isNaN(zip1))
{
alert("Please insert valid zip");
return false;

}

if( !document.getElementById('optin').checked )
{
     alert("Please check to receive UMI updates");
     return false;
}

}