create plugin netbeans

i need plugin for netbeans program , to make my syntax as auto-complete like html code when type < input netbeans show some word like "type,name,id,..,other" so i have same syntax and need plugin to tell netbeans about my staff options my syntax start with "<lezaz" so when i type this tag plugin well show options like "type, len,date,...,other" and when i choose date for example plugin tell netbeans about value suggest for this option like "d\m\y,DD\MM\YY,...other" thank you