function validate_signin()
{
       var form=document.signin;
       if (form.username.value == "" || form.username.value == "Username") {
			alert( "You Must Provide Your Username");
			form.username.value="";
			form.username.focus();
			return false;
		}
		if (form.password.value == "" || form.password.value == "Password") {
			alert( "You Must Provide Your Password");
			form.password.value="";
			form.password.focus();
			return false;
		}
  document.form.submit(true);
}
function validate_signup()
{
       var form=document.email_signup;
       if (form.name.value == "" || form.name.value == "Name") {
			alert( "You Must Provide Your Name");
			form.name.value="";
			form.name.focus();
			return false;
		}
		if (form.email.value == "" || form.email.value == "Email" ) {
			alert( "You Must Provide Your Email Id");
			form.email.value="";
			form.email.focus();
			return false;
		}
		if (form.email.value != ""){
			if(!checkemail(form.email))
			{
				return false;
			}
		}
        document.form.submit(true);
}
function checkemail(mail)
    {
      var str=mail.value;
		if(str!="")
        {
        var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
           if (filter.test(str))
             {
              return true;
             }
           else
            {
             alert("Enter The Valid Email ID");
             mail.focus();
             return false;
            }
        }
      else
       {
        return true;
        } 
}