function checkForm()
{
	var error = "";
  var condition = 0;

  // Name Validation
  var name = document.frmPaypal.os0.value;
  var namevalue = checkName(name);
  if(name.length < 4 || name=="" || namevalue == false)
  {
    error += "Please Enter Name.\n";
  }

   //Email Address Validation
  var email = document.frmPaypal.os1.value;
  var emailvalue = checkEmail(email);
  if(email.length < 4 || email.length > 30 || email=="" || emailvalue==false)
  {
    error +="Please Enter Email Address.\n";
  }
  //End Of Validation

  //check error is empty or not
  if(error == "")
  return true;
  else{
    alert(error);
    return false;
  }

}

// Functions for Fields Validations
function checkName(name)
{
  var nameexp =/^[a-zA-Z]+(\.|\s)*[a-zA-Z]+$/;// /^[a-zA-Z]+$/;
  //var nameexp = /^[a-zA-Z]+(\.|\s)*[a-zA-Z]+$/;
  var nameres = nameexp.test(name);
   return nameres;
}

function checkEmail(email)
{
  //var emailexp = /^[a-zA-Z0-9]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$/;
  var emailexp = /^[a-zA-Z][\w\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]$/;
  var emailres = emailexp.test(email);
  return emailres;
}