function IsBlank(s)
{
if(s.charAt(0)=="")
return true;
else 
return false;
}

function IsValid()
{
var str = document.subscribe.email.value;
len = str.length;
for(i=1;i<len;i++)
{
if(str.charAt(i) == "@")
{
return true;
}
}
alert("Please Enter a valid E-mail Address!!");
return false;
}

function Validate_Email()
{
var str = document.subscribe.email.value;
if(IsBlank(str))
{
alert("Please Enter a valid E-mail Address!!");
return false;
}
if(IsValid())
{
return true;
}
return false;
}

function processForm()
{
var str = document.subscribe.name.value;
if(IsBlank(str))
{
alert("Please Enter a Name!!");
return false;
}
if(!Validate_Email())
return false;
return true;
}