function select(){
var ausgabe = '';
selected = document.form.lens_manufactor.value;

switch(selected){

case "0":
select_lens = "";
document.getElementById("add_keyword").innerHTML="";
document.getElementById("lenstext").innerHTML= "";
break;

case "Canon":
var canon_lens = new Array(
"EF 14mm 1:2.8L USM",
"EF 14mm 1:2.8L II USM",
"EF 15mm 1:2.8 Fisheye",
"EF 20mm 1:2.8 USM",
"EF 24mm f/1.4L II USM",
"EF 24mm 1:2.8",
"EF 28mm 1:1.8 USM",
"EF 28mm 1:2.8",
"EF 35mm 1:1.4L USM",
"EF 35mm 1:2",
"EF 50mm 1:1.2L USM",
"EF 50mm 1:1.4 USM",
"EF 50mm 1:1.8 II",
"EF 85mm 1:1.2L II USM",
"EF 85mm 1:1.8 USM",
"EF 100mm 1:2 USM",
"EF 135mm 1:2L USM",
"EF 135mm 1:2.8",
"EF 200mm 1:2.8L II USM",
"EF 200mm 1:2.0L IS USM",
"EF-S 10-22mm 1:3.5-4.5 USM",
"EF-S 18-55mm 1:3.5-5.6",
"EF 16-35mm 1:2.8L USM",
"EF 16-35mm 1:2.8L II USM",
"EF 17-40mm 1:4L USM",
"EF 20-35mm 1:3.5-4.5 USM",
"EF 24-70mm 1:2.8L USM",
"EF 24-85mm 1:3.5-4.5 USM",
"EF 28-90mm 1:4-5.6 II",
"EF 28-90mm 1:4-5.6 II USM",
"EF 28-105 mm 1:3.5-4.5 II USM",
"EF 28-105mm 1:4-5.6",
"EF 28-105mm 1:4-5.6 USM",
"EF 28-200mm 1:3.5-5.6",
"EF 28-200mm 1:3.5-5.6 USM",
"EF 55-200mm 1:4.5-5.6 II USM",
"EF 70-200mm 1:4L USM",
"EF 75-300mm 1:4-5.6 III",
"EF 75-300mm 1:4-5.6 III USM",
"EF 80-200mm 1:4.5-5.6 II",
"EF 90-300mm 1:4.5-5.6",
"EF 90-300mm 1:4.5-5.6 USM",
"EF 100-300mm 1:4.5-5.6 US",
"TS-E 17mm 1:4L",
"TS-E 24mm 1:3.5L",
"TS-E 24mm 1:3.5L II",
"TS-E 45mm 1:2.8",
"TS-E 90mm 1:2.8",
"EF-S 60mm 1:2.8 Macro USM",
"EF 50mm 1:2.5 Compact Macro",
"EF 100mm 1:2.8 Macro USM",
"EF 180mm 1:3.5L Macro USM",
"MP-E 65mm 1:2.8 1-5x Macro",
"EF-S 17-55mm 1:2.8 IS USM",
"EF-S 17-85mm 1:4-5.6 IS USM",
"EF-S 18-55mm 1:3.5-5.6 IS",
"EF-S 55-250mm 1:4-5.6 IS",
"EF-S 18-200mm f/3.5-5.6 IS",
"EF 24-105mm 1:4L IS USM",
"EF 28-135mm 1:3.5-5.6 IS USM",
"EF 28-300mm 1:3.5-5.6L IS USM",
"EF 70-200mm 1:2.8L IS USM",
"EF 70-200mm 1:4L IS USM",
"EF 70-300mm 1:4-5.6 IS USM",
"EF 70-300mm 1:4.5-5.6 DO IS USM",
"EF 100-400mm 1:4.5-5.6L IS USM",
"EF 300mm 1:2.8L IS USM",
"EF 300mm 1:4L IS USM",
"EF 400mm 1:2.8L IS USM",
"EF 400mm 1:4 DO IS USM",
"EF 500mm 1:4L IS USM",
"EF 600mm 1:4L IS USM",
"EF 800mm 1:5,6L IS USM"
);

for (var item in canon_lens) {
ausgabe +="<option value=\"" +canon_lens[item] +"\">" +canon_lens[item] +"</option>\n";
}
select_lens = "<select size='1' name='lens' class='input'>" + ausgabe + "</select>";
document.getElementById("add_keyword").innerHTML="<br \><b><span style=\" font-size:12px\" class=\"message_color1\">! Objektiv zu Schlüsselwörter hinzufügen</b></span></b> <input type='button' name='add_key' value='OK' class='button' onClick='setkey()'/>";
document.getElementById("lenstext").innerHTML= "<b>Objektivmodell:</b>";
break;

case "Sigma":
var sigma_lens = new Array(
"4.5mm F2.8 EX DC Zirkular Fisheye HSM",
"8mm F3.5 EX DG Zirkular Fisheye",
"10mm F2.8 EX DC HSM",
"10-20mm F4-5.6 EX DC HSM",
"12-24mm F4.5-5.6 EX DG Asp. HSM",
"15mm F2.8 EX DG FISHEYE",
"17-70mm F2.8-4.5 DC (HSM)",
"18-50mm F3.5-5.6 DC",
"18-200mm F3.5-6.3 DC OS",
"18-50mm F2.8 EX DC MAKRO (HSM)",
"18-125mm F3.8-5.6 DC OS HSM",
"18-250mm F3.5-6.3 DC OS HSM",
"18-200mm F3.5-6.3 DC",
"20mm F1.8 EX DG",
"24-60mm F2.8 EX DG",
"24-70mm F2.8 EX DG",
"24-70 F2.8 EX DG HSM",
"24mm F1.8 EX DG",
"28-70mm F2.8 EX DG",
"28-300mm F3.5-6.3 DG Makro",
"28mm F1.8 EX DG",
"30mm F1.4 EX DC HSM",
"50mm F2.8 EX DG MAKRO",
"50mm F1.4 EX DG HSM",
"50-500mm F4.0-6.3 EX APO HSM",
"50-500mm F4.0-6.3 EX APO DG HSM",
"50-150mm F2.8 EX APO DC HSM II",
"55-200mm F4-5.6 DC",
"70-300mm F4.0-5.6 DG",
"70mm F2.8 EX DG MAKRO",
"70-300mm F4.0-5.6 DG APO",
"70-200mm F2.8 EX APO HSM",
"70-200mm F2.8 EX APO DG Makro HSM II",
"100-300mm F4 EX DG HSM",
"105mm F2.8 EX DG MAKRO",
"120-400mm F4.5-5.6 DG OS HSM",
"120-300mm F2.8 EX DG HSM",
"150-500mm F5-6.3 DG OS HSM",
"150mm F2.8 EX DG HSM MAKRO",
"180mm F3.5 EX DG HSM MAKRO",
"200-500mm F2.8 EX DG",
"300mm F2.8 EX DG HSM",
"300-800mm F5.6 EX DG HSM",
"500mm F4.5 EX DG HSM",
"800mm F5.6 EX DG HSM"
);

for (var item in sigma_lens) {
ausgabe +="<option value=\"" +sigma_lens[item] +"\">" +sigma_lens[item] +"</option>\n";
}
select_lens = "<select size='1' name='lens' class='input'>" + ausgabe +"</select>";
document.getElementById("add_keyword").innerHTML="<br \><b><span style=\" font-size:12px\" class=\"message_color1\">! Objektiv zu Schlüsselwörter hinzufügen</b></span> <input type='button' name='add_key' value='OK' class='button' onClick='setkey()'/>";
document.getElementById("lenstext").innerHTML= "<b>Objektivmodell:</b>";
break;

case "Nikon":
var nikon_lens = new Array(
"AF DX Fisheye-NIKKOR 10.5mm 1:2.8G ED",
"AF-S DX Zoom-NIKKOR 12-24mm 1:4G IF-ED",
"AF-S DX NIKKOR 16-85mm 1:3.5 - 5.6G ED VR",
"AF-S DX Zoom-NIKKOR 17-55mm 1:2.8G IF-ED",
"AF-S DX VR Zoom-NIKKOR 18-55mm 1:3.5-5.6G",
"AF-S DX Zoom-NIKKOR 18-55mm 1:3.5-5.6G ED II",
"AF-S DX Zoom-NIKKOR 18-70mm 1:3.5-4.5G IF-ED",
"AF-S DX NIKKOR 18-105mm 1:3.5-5.6G ED VR",
"AF-S DX Zoom-NIKKOR 18-135mm 1:3.5-5.6 IF-ED",
"AF-S DX VR Zoom-NIKKOR 18-200mm 1:3.5-5.6G IF-ED",
"AF-S DX NIKKOR 35mm 1:1.8G",
"AF-S DX VR Zoom-NIKKOR 55-200mm 1:4-5.6 G IF-ED",
"AF-S DX Zoom-NIKKOR 55-200mm 1:4-5.6G ED",
"AF NIKKOR 14 mm 1:2.8D ED",
"AF Fisheye-NIKKOR 16mm 1:2.8D",
"AF NIKKOR 20mm 1:2.8D",
"AF NIKKOR 24mm 1:2.8D",
"AF NIKKOR 28mm 1:2.8D",
"AF NIKKOR 35mm 1:2D",
"AF-S Zoom NIKKOR 16-35mm 1:4.0G ED VR",
"AF-S Zoom-NIKKOR 14-24mm 1:2.8G ED",
"AF-S Zoom-NIKKOR 17-35mm 1.2.8D IF-ED",
"AF Zoom-NIKKOR 18-35mm 1:3.5-4.5D ED",
"AF Zoom-NIKKOR 24-85mm 1:2.8-4D IF",
"AF-S VR Zoom-NIKKOR 24-120mm 1:3.5-5.6G IF-ED",
"AF-S NIKKOR 50mm 1:1.4G",
"AF NIKKOR 50mm 1:1.4D",
"AF NIKKOR 50mm 1:1.8D",
"AF-S Zoom-NIKKOR 24-70mm 1:2.8G ED",
"AF-S Zoom-NIKKOR 28-70mm 1:2.8 IF-ED",
"AF NIKKOR 85mm 1:1.4D",
"AF NIKKOR 85mm 1:1.8D",
"AF DC-NIKKOR 105mm 1:2D",
"AF NIKKOR 180mm 1:2.8D IF-ED",
"AF-S VR Zoom-NIKKOR 70-200mm 1:2.8G IF-ED",
"AF VR Zoom-NIKKOR 80-400mm 1:4.5-5.6D ED",
"AF-S VR Zoom-NIKKOR 70-300mm 1:4.5-5.6G IF-ED",
"AF-S VR Zoom-NIKKOR 200-400mm 1:4G IF-ED",
"AF-S VR NIKKOR 200mm 1:2G IF-ED",
"AF-S NIKKOR 300mm 1:4D IF-ED",
"AF-S VR NIKKOR 300mm 1:2.8 IF-ED",
"AF-S VR NIKKOR 400mm 1:2.8G ED",
"F-S NIKKOR 400mm 1:2.8D IF-ED II",
"AF-S VR NIKKOR 500mm 1:4G ED",
"AF-S NIKKOR 500mm 1:4D IF-ED II",
"AF-S VR NIKKOR 600mm 1:4G ED",
"AF-S NIKKOR 600mm 1:4D IF-ED II",
"AF-S MICRO NIKKOR 60mm/2.8G ED",
"AF Micro-NIKKOR 60mm 1:2.8D",
"AF-S VR Micro-NIKKOR 105mm 1:2.8G",
"AF Micro-NIKKOR 200mm 1:4D IF-ED",
"PC-E Micro NIKKOR 85mm 1:2.8D",
"PC-E NIKKOR 24mm / 3.5D ED"
);

for (var item in nikon_lens) {
ausgabe +="<option value=\"" +nikon_lens[item] +"\">" +nikon_lens[item] +"</option>\n";
}
select_lens = "<select size='1' name='lens' class='input'>" + ausgabe +"</select>";
document.getElementById("add_keyword").innerHTML="<br \><b><span style=\" font-size:12px\" class=\"message_color1\">! Objektiv zu Schlüsselwörter hinzufügen</b></span></b> <input type='button' name='add_key' value='OK' class='button' onClick='setkey()'/>";
document.getElementById("lenstext").innerHTML= "<b>Objektivmodell:</b>";
break;


case "Tamron":
var tamron_lens = new Array(
"SP AF10-24mm F/3.5-4.5 Di II LD Asph [IF]",
"SP AF 17-50mm F/2.8 XR Di II LD Asph [IF]",
"AF 18-200mm F/3.5-6.3 XR Di II LD Asph [IF] MACRO",
"AF 18-250mm F/3.5-6.3 Di II LD Asph [IF] MACRO",
"AF 18-270mm F/3.5 -6.3 Di II VC LD Asph [IF] Macro",
"AF 55-200mm F/4-5.6 Di II LD MACRO",
"SP AF 28-75mm F/2.8 XR Di LD Asph [IF] MACRO",
"AF 28-200mm F/3.8-5.6 XR Di Asph [IF] MACRO",
"AF 28-300mm F/3.5-6.3 XR Di LD Asph [IF] MACRO",
"AF 28-300mm F/3.5-6.3 XR Di VC LD Asph [IF] MACRO",
"SP AF 70-200mm F/2.8 Di LD [IF] MACRO",
"AF 70-300mm F/4-5.6 Di LD MACRO 1:2",
"SP AF 200-500mm F/5-6.3 Di LD [IF]",
"SP AF 90mm F/2.8 Di MACRO 1:1",
"SP AF 180mm F/3.5 Di LD[IF] MACRO 1:1",
"AF 28-80mm F/3.5-5.6 Asph",
"SP AF 17-35mm F/2.8-4 Di LD Asph [IF]",
"SP AF 11-18mm F/4.5-5.6 Di II LD Asph [IF]",
"SP AF 14mm F/2.8 Asph [IF]",
"2.5/90mm AF",
"2.8/90mm AF",
"SP AF 90mm F/2.8 Macro 1:1",
"2.8/300mm",
"2.8/300mm AF",
"SP AF 300mm F/2.8 LD IF",
"AF 19-35mm F/3.5-4.5",
"AF 20-40mm/2.7-3.5",
"AF 20-40mm F/2.7-3.5 Asph [IF]",
"AF 24-70mm F/3.3-5.6",
"SP AF 24-135mm F/3.5-5.6 AD Asph [IF]",
"AF 28-70mm/3.5-4.5",
"AF 28-70mm F/3.5-4.5",
"AF 28-80mm F/3.5-5.6",
"AF 28-105mm F/4-5.6",
"AF 28-105mm F/2.8",
"SP AF 28-105mm F/2.8 LD Asph [IF]",
"AF 28-105mm F/4-5.6 [IF]",
"AF 28-200mm F/3.8-5.6",
"AF 28-200mm/3.8-5.6",
"AF 28-200mm F/3.5-5.6 LD ASL [IF]",
"AF 28-200mm F/3.8-5.6",
"AF 28-200mm F/3.5-5.6 LD ASL [IF] Macro",
"AF 28-200mm F/3.8-5.6 Asph XR [IF] MACRO",
"AF 28-300mm F/3.5-6.3 LD ASL [IF] Macro",
"AF 28-300mm F/3.5-6.3 LD AD Asph XR [IF] Macro",
"AF 35-90mm F/4-5.6",
"AF 35-105mm F/2.8",
"AF 35-135mm F/3.5-4.5",
"AF 70-210mm/4-5.6",
"AF 70-210mm F/4-5.6",
"AF 70-210mm F/2.8",
"AF 70-300mm F/4-5.6",
"AF 70-300mm F/4-5.6",
"AF 70-300mm F/4-5.6 LD",
"AF 70-300mm F/4-5.6 LD MACRO 1:2",
"AF 75-300mm F/4-5.6 LD",
"AF 80-210mm F/4.5-5.6",
"AF 80-210mm f/4.5-5.6",
"AF 90-300mm F/4.5-5.6",
"AF 100-300mm F/5-6.3",
"AF 200-400mm F/5.6",
"AF 200-400mm F/5.6 LD [IF]"
);

for (var item in tamron_lens) {
ausgabe +="<option value=\"" +tamron_lens[item] +"\">" +tamron_lens[item] +"</option>\n";
}
select_lens = "<select size='1' name='lens' class='input'>" + ausgabe +"</select>";
document.getElementById("add_keyword").innerHTML="<br \><b><span style=\" font-size:12px\" class=\"message_color1\">! Objektiv zu Schlüsselwörter hinzufügen</b></span></b> <input type='button' name='add_key' value='OK' class='button' onClick='setkey()'/>";
document.getElementById("lenstext").innerHTML= "<b>Objektivmodell:</b>";
break;

case "Tokina":
var tokina_lens = new Array(
"AF11-16mm f/2.8",
"AF10-17mm f/3.5-4.5",
"AF12-24mm f/4",
"AF16-50mm f/2.8",
"AF50-135mm f/2.8",
"AF80-400mm f/4.5-5.6",
"AF35mm f/2.8 Macro",
"AF100mm f/2.8"
);

for (var item in tokina_lens) {
ausgabe +="<option value=\"" +tokina_lens[item] +"\">" +tokina_lens[item] +"</option>\n";
}
select_lens = "<select size='1' name='lens' class='input'>" + ausgabe +"</select>";
document.getElementById("add_keyword").innerHTML="<br \><b><span style=\" font-size:12px\" class=\"message_color1\">! Objektiv zu Schlüsselwörter hinzufügen</b></span></b> <input type='button' name='add_key' value='OK' class='button' onClick='setkey()'/>";
document.getElementById("lenstext").innerHTML= "<b>Objektivmodell:</b>";
break;

case "Sony":
var sony_lens = new Array(
"SAL-16105 DT 16–105mm F3.5–5.6",
"SAL-1635Z 16-35mm F2.8 ZA SSM",
"SAL-1680Z DT 16-80mm F3.5-4.5 ZA",
"SAL-1870 DT 18–70mm F3.5–5.6",
"SAL-18200 DT 18-200mm F3.5-6.3",
"SAL-18250 DT 18–250mm F 3.5–6.3",
"SAL-2470Z 24-70mm F2.8 ZA SSM",
"SAL-55200 DT 55–200mm F4–5.6",
"SAL-70200G 70-200mm F2.8 G",
"SAL-70300G 70-300mm F4.5-5.6 G SSM",
"SAL-70400G 70-400mm F4-5.6 G SSM",
"SAL-75300 75-300mm F4.5-5.6",
"SAL-24105 24-105mm F3.5-4.5",
"SAL-50F14 50mm F1.4",
"SAL-16F28 16mm F2.8 Fischauge",
"SAL-20F28 20mm F2.8",
"SAL-28F28 28mm F2.8",
"SAL-35F14G 35mm F1.4 G",
"SAL-300F28G 300mm F2.8 G",
"SAL-500F80 500mm F8",
"SAL-85F14Z 85mm F1.4 ZA",
"SAL-135F18Z 135mm F1.8 ZA",
"SAL-50M28 50mm F2.8 Makro",
"SAL-100M28 100mm F2.8 Makro",
"SAL-135F28 135mm F2.8 [T4.5] STF"
);

for (var item in sony_lens) {
ausgabe +="<option value=\"" +sony_lens[item] +"\">" +sony_lens[item] +"</option>\n";
}
select_lens = "<select size='1' name='lens' class='input'>" + ausgabe +"</select>";
document.getElementById("add_keyword").innerHTML="<br \><b><span style=\" font-size:12px\" class=\"message_color1\">! Objektiv zu Schlüsselwörter hinzufügen</b></span></b> <input type='button' name='add_key' value='OK' class='button' onClick='setkey()'/>";
document.getElementById("lenstext").innerHTML= "<b>Objektivmodell:</b>";
break;

case "6":
select_lens = "<input name='man_lens' type='text' size='40'/ class='input'>";
document.getElementById("lenstext").innerHTML= "<b>Format:</b> Hersteller Objektivdaten";
document.getElementById("add_keyword").innerHTML="";
break;

default:
break;
}
document.getElementById("lens").innerHTML = select_lens;
}