[Dark]

Попробуй так:

var type1 = $(":radio[name=type1]").filter(":checked").val();  

switch (type1){  
case "matrNN":  
    n = $('select[@name=sz1] option:selected').val();  
    generic_input(n,n);
break;
case "list":  
    n = $('select[@name=sz1] option:selected').val();  
    generic_list(n);  
break;
case "matrNM":  
    n = $('select[@name=sz1] option:selected').val();  
    m = $('select[@name=sz2] option:selected').val();  
    generic_input(n,m);  
break;
}; //switch