function checkit()
{
var f = document.forms['subsc']
emlcheck = f.email.value;
if(emlcheck.length==0)
{
alert('      !');
return false
}
if ((emlcheck.length < 6) && (emlcheck.length > 1)){
alert (", ,    .");
return false;
}
if (emlcheck.length != 0){
var symbols = ".@";
for(var i = 0; i < symbols.length; i++){
var currChar = symbols.charAt(i);
if (emlcheck.indexOf(currChar, 0) == -1){
alert (", ,    .");
return false;
} } }
var at_pos  = emlcheck.indexOf("@", 0);
var dot_pos = emlcheck.indexOf(".", at_pos);
if (at_pos > dot_pos){
alert (", ,    .");
return false;
}
else
{
return true
} }