Deci, codul:
function username_check(text)
{
var i,j;
var forbidden='`~!@#$%^&*()=+[];',./{}|:"'; // Caractere nepermise
if(text.length<4)// 4 e lungimea minima
{
return 0;
}
else
{
for(i=0;i {
for(j=0;j {
if(text[j]==forbidden[i])
{
return 0;
}
}
}
}
return 1;
}
try:
http://te4l.ifastnet.com/snippets/client/username_check.html