function validateForm()
{
var x=document.forms["myForm"]["name"].value;
if (x==null || x=="")
  {
  alert("First name must be filled out");
  document.forms["myForm"]["name"].focus();
  return false;
  }
var x=document.forms["myForm"]["phone"].value;
if(x=="")
  {
  alert("Phone number must be filled out");
  document.forms["myForm"]["phone"].focus();
  return false;
  }
  else if(isNaN(x))
  {
	  alert("Phone number should be number");
	  document.forms["myForm"]["phone"].focus();
	  return false;
  }


var x=document.forms["myForm"]["email"].value;
var atpos=x.indexOf("@");
var dotpos=x.lastIndexOf(".");
if (atpos<1 || dotpos<atpos+2 || dotpos+2>=x.length)
  {
  alert("Not a valid e-mail address");
  document.forms["myForm"]["email"].focus();
  return false;
  } 
}