function validate(frm)
{
 name1 = frm.sName;
 name2=frm.name1;
 email = frm.sEmail;
 email2=frm.email1;
 /// alert(name2.value);
 //alert(email2/valu);
 err_flag = 0;
 if (name1.value == "" || !removeSpaces(name1.value))
 {
  alert ("Please enter Your Name!");
  name1.focus();
  return false; 
  name1.value="";
 }
 else if (email.value == "" || !validate_email(email.value))
 {
  alert ("Please enter valid Email Address!");
  email.focus();
  return false; 
 }
 if (name2.value == "" || !removeSpaces(name2.value))
 {
  alert ("Please enter Friend's Name!");
  name2.focus();
  return false; 
  name2.value="";
 }
 else if (email2.value == "" || !validate_email(email2.value))
 {
  alert ("Please enter Friend's Valid Email Address!");
  email2.focus();
  return false; 
 }
}
function validate_email(e)
{
 var str=e;
 var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
 if (!filter.test(str))
 {
  return false;
 }
 else
 {
  return true;
 }
}
function removeSpaces(string)
{
 var tstring = "";
 string = '' + string;
 splitstring = string.split(" ");
 for(i = 0; i < splitstring.length; i++)
 tstring += splitstring[i];
 return tstring;
}