var invalidaddress=new Array()
//invalidaddress[0]="hotmail"
//invalidaddress[1]="virgilio"
//invalidaddress[2]="yahoo"
//invalidaddress[3]="email"
//extend or shorten this list if neccessary

var testresults
function checkemail(){
var invalidcheck=0;
var str=document.form.email.value
var filter=/^(\w+(?:\.\w+)*)@((?:\w+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
if (filter.test(str)){
var tempstring=str.split("@")
tempstring=tempstring[1].split(".")
for (i=0;i<invalidaddress.length;i++){
if (tempstring[0]==invalidaddress[i])
invalidcheck=1
}
if (invalidcheck!=1)
testresults=true
else{
alert("Indirizzo troppo generico!")
testresults=false
}
}
else{
alert("Indirizzo email non valido!")
testresults=false
}
return (testresults)
}


function checkbae(){
if (document.layers||document.getElementById||document.all)
return checkemail()
else
return true
}