function clearText()
{
    document.getElementById('<%=txt_keyword.ClientID %>').value='';
    document.getElementById('<%=txt_key.ClientID %>').value='';
}
function clearTextkey()
{
    document.getElementById('<%=txt_key.ClientID %>').value='';
}
function clearName()
{
    document.getElementById('<%=txtName.ClientID %>').value='';
}
function clearEmail()
{
    document.getElementById('<%=txtEmail.ClientID %>').value='';
}
function clearContent()
{
    document.getElementById('<%=txtContent.ClientID %>').value='';
}
function clearEmail()
{
    document.getElementById('<%=txtMail.ClientID %>').value='';
}