var main_cat = "";
var arr_main_cats	= Array();
arr_main_cats[1]	= Array("1", "BILD");
arr_main_cats[2]	= Array("2", "VIDEO");
arr_main_cats[3]	= Array("3", "MUSIK");
arr_main_cats[4]	= Array("4", "TEXT");

//--------------------------------------------------------------------
function change_main_cat(fieldname, formname, thevalue) {

	if (thevalue == "") {
		main_cat = thevalue;
		fill_option('0', formname);
	} else {
		var itemvalues = document[formname][fieldname];
		var iv_len = (itemvalues.length == undefined) ? 1 : itemvalues.length;
		for (var i = 0; i < iv_len; i++) {
			if (itemvalues[i].value == thevalue) {
				itemvalues[i].checked = true;
				if (thevalue != main_cat) {
					main_cat = thevalue;
					
					fill_option('0', formname);
				}
			}
			else {
				
			}
		}
	}

}

//--------------------------------------------------------------------
function fill_option(changed_option, formname)
{
	if (arr_main_cats[main_cat] == undefined) {

		document[formname]["cat_1"].options.length = 0;
		document[formname]["cat_2"].options.length = 0;
		document[formname]["cat_3[]"].options.length = 0;
	
	} else {

		// Kategorien zu dieser Hauptkategorie auslesen:
		arr_optionvalues = arr_optionvalues_master[arr_main_cats[main_cat][0]][0]["subcat"];

		var cat_1 = document[formname]["cat_1"];
		if ((cat_1.selectedIndex == undefined) || (cat_1.selectedIndex < 0) || (changed_option == "0")) {
		
			document[formname]["cat_1"].options.length = arr_optionvalues.length;				
			for (var c1 = 0; c1 < arr_optionvalues.length; c1++)
			{
				document[formname]["cat_1"].options[c1].value	= arr_optionvalues[c1]["value"];
				document[formname]["cat_1"].options[c1].text	= arr_optionvalues[c1]["title"];
				document[formname]["cat_1"].options[c1].selected = false;
			}
			document[formname]["cat_2"].options.length = 0;
			document[formname]["cat_3[]"].options.length = 0;
		
		} 
		else {
			var cat_1_value = cat_1[cat_1.selectedIndex].value;
			for (var c1 = 0; c1 < arr_optionvalues.length; c1++)
			{
				var arr_c1_data = arr_optionvalues[c1];
				if (cat_1_value == arr_c1_data["value"])
				{			
					if (changed_option == 1)
					{
						document[formname]["cat_2"].options.length = 0;
						
						if (arr_c1_data["subcat"] != undefined) {
							document[formname]["cat_2"].options.length = arr_c1_data["subcat"].length;
							for (var c2 = 0; c2 < arr_c1_data["subcat"].length; c2++)
							{
								document[formname]["cat_2"].options[c2].value	= arr_c1_data["subcat"][c2]["value"];
								document[formname]["cat_2"].options[c2].text	= arr_c1_data["subcat"][c2]["title"];
								document[formname]["cat_2"].options[c2].selected = false;
							}
						} 						
						document[formname]["cat_3[]"].options.length = 0;
                                                
                                                //bilder -> 3.Spalte füllen
                                                if (arr_c1_data["value"] == '5' || arr_c1_data["value"] == '6')
                                                {
                                                    arr_c2_data = arr_c1_data["subcat"];
                                                    
                                                    for (var i = 0; i < arr_c2_data.length; i++)
                                                    {
                                                        if (arr_c2_data[i]["value"] == '28')
                                                        {
                                                            arr_c3_data = arr_c2_data[i]["subcat"];
                                                        }
                                                        if (arr_c2_data[i]["value"] == '33')
                                                        {
                                                            arr_c3_data = arr_c2_data[i]["subcat"];
                                                        }
                                                    }
						    document[formname]["cat_3[]"].options.length = arr_c3_data.length;
                                                    for (var c3 = 0; c3 < arr_c3_data.length; c3++)
                                                    {
                                                            document[formname]["cat_3[]"].options[c3].value	= arr_c3_data[c3]["value"];
                                                            document[formname]["cat_3[]"].options[c3].text	= arr_c3_data[c3]["title"];
                                                            document[formname]["cat_3[]"].options[c3].selected = false;
                                                    }
                                                }
					}
					
                                        /*
                                        if (changed_option == 2)
					{
						var cat_2 = document[formname]["cat_2"];
						var cat_2_index = cat_2.selectedIndex;
						var cat_2_value = cat_2[cat_2.selectedIndex].value;
						for (var c2 = 0; c2 < arr_c1_data["subcat"].length; c2++)
						{
							var arr_c2_data = arr_c1_data["subcat"][c2];					
							if (cat_2_value == arr_c2_data["value"])
							{
								document[formname]["cat_3[]"].options.length = 0;
								
								if (arr_c2_data["subcat"] != undefined) {							
									document[formname]["cat_3[]"].options.length = arr_c2_data["subcat"].length;
									for (var c3 = 0; c3 < arr_c2_data["subcat"].length; c3++)
									{
										document[formname]["cat_3[]"].options[c3].value	= arr_c2_data["subcat"][c3]["value"];
										document[formname]["cat_3[]"].options[c3].text	= arr_c2_data["subcat"][c3]["title"];
										document[formname]["cat_3[]"].options[c3].selected = false;
									}
								} 								
							}
						}
					}
                                        */
				}
			}
		}
	}
}
//--------------------------------------------------------------------
var arr_optionvalues_master = Array();

arr_optionvalues_master[1] = 
[
	{
	"value": "1",
	"title": "Pictures",
	"subcat":
	[
		{
		"value": "5",
		"title": "2-Dimensional",
		"subcat":
		[
			{
			"value": "22",
			"title": "Painting"
			}
			,
			{
			"value": "23",
			"title": "Drawing"
			}
			,
			{
			"value": "24",
			"title": "Printmaking"
			}
			,
			{
			"value": "25",
			"title": "Photography"
			}
			,
			{
			"value": "26",
			"title": "Graphic Design"
			}
			,
			{
			"value": "27",
			"title": "Illustration"
			}
			,
			{
			"value": "28",
			"title": "Other",
			"subcat":
			[
				{
				"value": "34",
				"title": "Figurative"
				}
				,
				{
				"value": "35",
				"title": "Abstract"
				}
				,
				{
				"value": "36",
				"title": "Landscape"
				}
				,
				{
				"value": "37",
				"title": "Portrait"
				}
				,
				{
				"value": "38",
				"title": "Black&White"
				}
				,
				{
				"value": "39",
				"title": "Minimalism"
				}
				,
				{
				"value": "40",
				"title": "Poster"
				}
				,
				{
				"value": "41",
				"title": "Typography"
				}
				,
				{
				"value": "42",
				"title": "Live-drawing"
				}
				,
				{
				"value": "43",
				"title": "Digital"
				}
				,
				{
				"value": "44",
				"title": "Web Design"
				}
			]
			}
		]
		}
		,
		{
		"value": "6",
		"title": "3-Dimensional",
		"subcat":
		[
			{
			"value": "29",
			"title": "Sculpture"
			}
			,
			{
			"value": "30",
			"title": "Installation"
			}
			,
			{
			"value": "31",
			"title": "Fashion"
			}
			,
			{
			"value": "32",
			"title": "Architecture"
			}
			,
			{
			"value": "33",
			"title": "Other",
			"subcat":
			[
				{
				"value": "45",
				"title": "Figurative"
				}
				,
				{
				"value": "46",
				"title": "Abstract"
				}
				,
				{
				"value": "47",
				"title": "Model"
				}
				,
				{
				"value": "48",
				"title": "Interior"
				}
				,
				{
				"value": "49",
				"title": "Exterior"
				}
				,
				{
				"value": "50",
				"title": "Womenswear"
				}
				,
				{
				"value": "51",
				"title": "Menswear"
				}
				,
				{
				"value": "52",
				"title": "Assessoires"
				}
				,
				{
				"value": "53",
				"title": "Jewellery"
				}
				,
				{
				"value": "54",
				"title": "Beauty"
				}
				,
				{
				"value": "55",
				"title": "Object"
				}
			]
			}
		]
		}
	]
	}
];

arr_optionvalues_master[2] = 
[
	{
	"value": "2",
	"title": "Video",
	"subcat":
	[
		{
		"value": "7",
		"title": "Film"
		}
		,
		{
		"value": "8",
		"title": "Clip"
		}
		,
		{
		"value": "9",
		"title": "Animation"
		}
		,
		{
		"value": "10",
		"title": "Documentation"
		}
		,
		{
		"value": "11",
		"title": "Performance"
		}
		,
		{
		"value": "12",
		"title": "Other",
		"subcat":
		[
			{
			"value": "56",
			"title": "Abstract"
			}
			,
			{
			"value": "57",
			"title": "Stop-Motion"
			}
			,
			{
			"value": "58",
			"title": "Dia-Show"
			}
			,
			{
			"value": "59",
			"title": "Digital"
			}
			,
			{
			"value": "60",
			"title": "Trailer"
			}
			,
			{
			"value": "61",
			"title": "Teaser"
			}
			,
			{
			"value": "62",
			"title": "TV Spot"
			}
			,
			{
			"value": "63",
			"title": "Amateur"
			}
			,
			{
			"value": "64",
			"title": "HD (High Definition)"
			}
			,
			{
			"value": "65",
			"title": "Ego Perspective"
			}
			,
			{
			"value": "66",
			"title": "Theatre"
			}
			,
			{
			"value": "67",
			"title": "Screensaver"
			}
		]
		}
	]
	}
];

arr_optionvalues_master[3] = 
[
	{
	"value": "3",
	"title": "Audio",
	"subcat":
	[
		{
		"value": "13",
		"title": "Music",
		"subcat":
		[
			{
			"value": "68",
			"title": "Alternative"
			}
			,
			{
			"value": "69",
			"title": "Blues"
			}
			,
			{
			"value": "70",
			"title": "Country"
			}
			,
			{
			"value": "71",
			"title": "Dance"
			}
			,
			{
			"value": "72",
			"title": "Electronic"
			}
			,
			{
			"value": "73",
			"title": "Folk"
			}
			,
			{
			"value": "74",
			"title": "Hip Hop"
			}
			,
			{
			"value": "75",
			"title": "Jazz"
			}
			,
			{
			"value": "76",
			"title": "Classic"
			}
			,
			{
			"value": "77",
			"title": "Latino"
			}
			,
			{
			"value": "78",
			"title": "Metal"
			}
			,
			{
			"value": "79",
			"title": "Pop"
			}
			,
			{
			"value": "80",
			"title": "R&B"
			}
			,
			{
			"value": "81",
			"title": "Reggae"
			}
			,
			{
			"value": "82",
			"title": "Rock"
			}
			,
			{
			"value": "83",
			"title": "Vocal"
			}
			,
			{
			"value": "84",
			"title": "World"
			}
			,
			{
			"value": "85",
			"title": "Other"
			}
		]
		}
		,
		{
		"value": "14",
		"title": "Sound"
		}
		,
		{
		"value": "15",
		"title": "Report"
		}
	]
	}
];

arr_optionvalues_master[4] = 
[
	{
	"value": "4",
	"title": "Literature",
	"subcat":
	[
		{
		"value": "16",
		"title": "Novel"
		}
		,
		{
		"value": "17",
		"title": "Poem"
		}
		,
		{
		"value": "18",
		"title": "Drama"
		}
		,
		{
		"value": "19",
		"title": "Short story"
		}
		,
		{
		"value": "20",
		"title": "Novella"
		}
		,
		{
		"value": "21",
		"title": "Other"
		}
	]
	}
];