function check_null()
{
frm = document.forgotpass

if(frm.email.value=="")
{
alert('Please Fill Email Address');
frm.email.focus();
return false;
}
if(frm.email.value!="")
{
var str = frm.email.value;
var reg1 = /(@.*@)|(\.\.)|(@\.)|(\.@)|(^\.)/; // not valid
var reg2 = /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3}|[0-9]{1,3})(\]?)$/; // valid
if (!reg1.test(str) && reg2.test(str)){ // if syntax is valid
//return true;
}else{
alert ("Please Enter Proper Email Address");
frm.email.focus();
return false;
}
}
return true;
}