Ok, i understand how to create them.
Its simply
g_myGlobalVar <- 234;//at the top of file
g_myGlobalVar1 <- "my value";//at the top of file
function onServerStart()
{
print( "My own global variable: " + g_myGlobalVar);
print( "My own global variable : " + g_myGlobalVar1);
return 1;
}
They have to be declared like this example:
g_YourVarName <- your_value;