function validate(f){
    var regex = /^\s*$/i;
      for(var i=0; i<f.elements.length; i++){
        if(regex.test(f.elements[i].value)){
	        if(f.elements[i].type=="file")
	        {return true}
	        else
	        {
          alert("Please fill in all fields.");
          f.elements[i].focus();
          return false;}
       }
    }
  return true;
}


 function validate_with_file(f){
    var regex = /^\s*$/i;
      for(var i=0; i<f.elements.length; i++){
        if(regex.test(f.elements[i].value)){
	        
          alert("Please fill in all fields.");
          f.elements[i].focus();
          return false;
       }
    }
  return true;
}


function validateemail(email)
{
	if(email.value.indexOf('@',0)==-1 || email.value.indexOf('.',0)==-1)
{
alert("You must provide a VALID email address.");
email.focus();
return false; 
}
  return true;
}