function valida(thisform){var first_name=document["getElementById"]("first_name")["value"];var last_name=document["getElementById"]("last_name")["value"];var email1=document["getElementById"]("email1")["value"];var lead_source=document["getElementById"]("lead_source")["value"];if(first_name==""&&last_name==""){alert("All fields marked with (*) are required");return false;} else {if(first_name==""){alert("Field first name is required");return false;} ;if(last_name==""){alert("Field last name is required");return false;} ;with(thisform){if(validate_email(email1,"It\x27s not a valid e-mail")==false){email1["focus"]();return false;} ;} ;if(lead_source=="0"){alert("Field how did you hear about us is required");return false;} ;} ;} ;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;} ;} ;} ;