function SendRequest()
{
if (document.getElementById('Text1').value == '')
{
alert("Email Field Required");
}
else
{
if (document.getElementById('Text1').value.indexOf(".") > 2 && document.getElementById('Text1').value.indexOf("@") > 0)
{
window.location = "coupon.aspx?email="+document.getElementById('Text1').value
}
else
{
alert("Valid Email Required");
}
}
}