function echeck(str) {
var at = "@"
var dot = "."
var lat = str.indexOf(at)
var lstr = str.length
var ldot = str.indexOf(dot)
if (str.indexOf(at) == -1) {
alert("Invalid E-mail ID")
return false
}
if (str.indexOf(at) == -1 || str.indexOf(at) == 0 || str.indexOf(at) == lstr) {
alert("Invalid E-mail ID")
return false
}
if (str.indexOf(dot) == -1 || str.indexOf(dot) == 0 || str.indexOf(dot) == lstr) {
alert("Invalid E-mail ID")
return false
}
if (str.indexOf(at, (lat + 1)) != -1) {
alert("Invalid E-mail ID")
return false
}
if (str.substring(lat - 1, lat) == dot || str.substring(lat + 1, lat + 2) == dot) {
alert("Invalid E-mail ID")
return false
}
if (str.indexOf(dot, (lat + 2)) == -1) {
alert("Invalid E-mail ID")
return false
}
if (str.indexOf(" ") != -1) {
alert("Invalid E-mail ID")
return false
}
return true
}
function ValidateForm() {
var emailID = document.getElementById('txtEmail');
if ((emailID.value == null) || (emailID.value == "")) {
alert("Please Enter your Email ID")
emailID.focus()
return false
}
if (echeck(emailID.value) == false) {
emailID.value = ""
emailID.focus()
return false
}
window.location = "/forms/download/download-signup.asp?code=3&e=" + emailID.value;
return true
}