function focusonfirst()
{

document.contact.name.value = "";
document.contact.name.focus();
} 


function validateform()
{
if(document.forms["contact"].elements["name"].value.length == 0)
{ 
alert('Please enter your name.');
contact.name.focus()
return false;
}

if(document.forms["contact"].elements["email"].value.length == 0)
{ 
alert('Please enter your email address.');
contact.email.focus()
return false;
}

if(document.forms["contact"].elements["email"].value.indexOf('@') < 0)
{ 
alert('Please enter a valid email address.'); 
contact.email.focus()
return false;
}

if(document.forms["contact"].elements["email"].value.indexOf('.') < 0)
{ 
alert('Please enter a valid email address.');
contact.email.focus()
return false;
}

if(document.forms["contact"].elements["message"].value.length == 0)
{ 
alert('Please enter your message.');
contact.message.focus()
return false;
}
return true;
}

function email_sent()
{
alert('Your email has been sent successfully. Thank you for contacting us. We shall reply to your message shortly.');
}