function validate(val)
{
if(document.forms[0].Name.value=='')
{
alert('Pleae enter your  Name');
document.forms[0].Name.focus();
return;
}
if(document.forms[0].submit_by.value=='')
{
alert('Pleae enter your Email');
document.forms[0].submit_by.focus();
return;
}
else if(document.forms[0].submit_by.value.indexOf("@")==-1)
{
alert('Pleae enter your valid Email');
document.forms[0].submit_by.focus();
document.forms[0].submit_by.select();
return;
}
else if(document.forms[0].submit_by.value.indexOf(".")==-1)
{
alert('Pleae enter your valid Email');
document.forms[0].submit_by.focus();
document.forms[0].submit_by.select();
return;
}
if(document.forms[0].Address.value=='')
{
alert('Pleace enter your  Address');
document.forms[0].Address.focus();
return;
}
if(document.forms[0].Comments.value=='')
{
alert('Pleace enter your  Comments');
document.forms[0].Comments.focus();
return;
}


document.forms[0].submit();
}