function validate_email(field,alerttxt)
{
with (field)
{
apos=value.indexOf("@");
dotpos=value.lastIndexOf(".");
if (apos<1||dotpos-apos<2) 
  {alert(alerttxt);return false;}
else {return true;}
}
}
 
// validation
function validateform() {
if(document.form1.Name.value==""){
alert("Please enter your name");
document.form1.Name.focus();
return false;
}
if(document.form1.Address.value==""){
alert("Please enter your address");
document.form1.Address.focus();
return false;
}
if(document.form1.Telephone.value==""){
alert("Please enter your telephone number");
document.form1.Telephone.focus();
return false;
}
if (validate_email(document.form1.Email,"Not a valid e-mail address!")==false){
document.form1.Email.focus();
return false;
}
if(document.form1.Who.value==""){
alert("Please enter who made the claim");
document.form1.Who.focus();
return false;
}
if(document.form1.Miner.value==""){
alert("Please enter who the claim was made for");
document.form1.Miner.focus();
return false;
}
if(document.form1.Disease.value==""){
alert("Please enter whether this was for VWF or COPD");
document.form1.Disease.focus();
return false;
}
if(document.form1.Solicitors.value==""){
alert("Please enter which solicitors you instructed");
document.form1.Solicitors.focus();
return false;
}
if(document.form1.Compensation.value==""){
alert("Please enter whether you received any compensation");
document.form1.Compensation.focus();
return false;
}
if(document.form1.Time.value==""){
alert("Please enter the best time to contact you");
document.form1.Time.focus();
return false;
}
}