function contactform()
{
if(document.forms[0].youremail.value=='')
{
alert('Please enter email address')
document.forms[0].youremail.focus()
return false;
}
else if(document.forms[0].youremail.value.indexOf("@")=="-1"||document.forms[0].youremail.value.indexOf(".")=="-1")
{
alert("Please enter correct email address");
document.forms[0].youremail.focus();
return false;
}
if(document.forms[0].yourcomment.value=='')
{
alert('Please enter question')
document.forms[0].yourcomment.focus()
return false;
}
}