function mapover(elm){
	var id = elm.id;
	var arr = new Array("nord","midt","syd","fyn","sjaelland","hovedstaden");
	for(x in arr){
		if(id == arr[x]){
			elm.src = "img/map/"+id+"on.gif";
		}else{
			var elm2 = document.getElementById(arr[x]);
			elm2.src = "img/map/"+elm2.id+"off.gif";
		}
	}
	
}

function clearinputfield(elm){
	elm.value = '';
}



// used for roof_menu 
function show_menu(elm){
	var menu = new Array("Add", "Edit", "Delete", "Bill");
	var menu_items = new Array("menu_add", "menu_edit", "menu_delete", "menu_bill");
	var id = elm.id;
	for(i=0; i < menu.length; i++){
		if(id == menu[i]){
			document.getElementById(menu_items[i]).style.display = "block";
			elm.style.backgroundColor = "#ccc";
		}else{
			document.getElementById(menu[i]).style.backgroundColor = "#fff";
			document.getElementById(menu_items[i]).style.display = "none";
		}
	}	
}

function clear_menu(){
	var menu = new Array("Add", "Edit", "Delete", "Bill");
	var menu_items = new Array("menu_add", "menu_edit", "menu_delete", "menu_bill");
	for(i=0; i < menu.length; i++){
		document.getElementById(menu_items[i]).style.display = "none";
		document.getElementById(menu[i]).style.backgroundColor = "#fff";		
	}	
}



// used for adding inputs
function addInput(parent, prefix_input, prefix_text, caption){ 
	var parent = document.getElementById(parent);
	var counter = document.getElementById('counter');
	var num = 0;
	var block = (prefix_text != '');
	
	
	var label = (caption != '')? caption: 'Title';
		
	if(counter == null){
		counter = document.getElementById(parent.id + '_counter'); 
		num = counter.innerHTML;
		counter.innerHTML = (num-1)+2;
	}else{
		num = counter.value;
		counter.value = (num-1)+2;
	}
	
	if(!block){
		var input = createInput(prefix_input, num, label, false);
	}else{
		
		/* create:
			<div id="line{num}">
				<input id={prefix_input+num} name="{prefix_input[num]['input']}"  value="{label num}"/>
				<textarea name="prefix_text[num]['text']" rows="2" cols="35"></textarea>
			</div>
		*/
		var div = document.createElement('div');
		div.setAttribute('id', 'block' + num);
		
		var textarea = document.createElement('textarea');
		textarea.setAttribute('name', prefix_text + '['+num+'][text]');
		textarea.setAttribute('rows', 2);
		textarea.setAttribute('cols', 35);
		
		div.appendChild(createInput(prefix_input, num, label,true));
		div.appendChild(textarea);
	}
		
	parent.appendChild((input)? input: div);	
}


// 	<input id={prefix+num} name="{prefix[num]}"  value="{label num}"/>
function createInput(prefix, num, label, block){
	elm = document.createElement('input');
	
	if(block){
		elm.setAttribute('name',prefix + '[' + num + '][input]');
	}else{
		elm.setAttribute('name',prefix + '[' + num + ']');
		elm.setAttribute('id', prefix + '_' + num);
	}
	
	elm.setAttribute('type', 'text');
	elm.setAttribute('value', label + ' ' + num);
	elm.setAttribute('size', 35);
	return elm;
}


// remove inputs added by "addInput()"
function removeInput(parent, prefix, block){
	var counter = document.getElementById('counter');
	var parent = document.getElementById(parent);
	var num;
	
	if(counter == null){
		counter = document.getElementById(parent.id + '_counter'); 
		num = counter.innerHTML-1;
		
		// make sure that the counter never goes below 1
		if(parent.innerHTML.length != 0){
			counter.innerHTML = num;
		}
	}else{
		num = counter.value-1;
		if(parent.innerHTML.length != 0){
			counter.value = num;
		}
	}
	
	var toRemove;
	if(block == 'true'){
		toRemove = document.getElementById(prefix + num);
	}else{
		toRemove = document.getElementById('' + prefix + '_' + num);
	}


	
	parent.removeChild(toRemove);
}


// show the roof_edit_input div's 
function show_roof_edit_input(elm){		
	if(elm.style.display == 'block'){
		elm.style.display = 'none';
	} else{
		elm.style.display = 'block';
	}	
	
}

function fade_in(id){
	elm = document.getElementById(id);
	elm.style.zIndex = '3';
}

function fade_out(id){
	elm = document.getElementById(id);
	elm.style.zIndex = '1';
}


function check_state(select, submit, input){
	var button = document.getElementById(submit);
	var text   = document.getElementById(input);
	
	if(select.options[select.selectedIndex].value== 'complete'){
		button.style.display = 'none';
		text.style.display = 'block'; 
	}
}

function check_content(input, button){
	if(input.value != ''){	
		document.getElementById(button).style.display = 'block';
	}else{
		document.getElementById(button).style.display = 'none';
	}
}

function go(elm){
	destination = elm.options[elm.selectedIndex].value;
	if (destination) location.href = destination;
}

function fill_day(elm, max_day){
	var month = elm.options[elm.selectedIndex].value;
	var year_select = document.getElementById('year');
	var year = year_select.options[year_select.selectedIndex].value;	
	var day = document.getElementById('day');
	
	var date = new Date(year, month-1, 1);	
	
	var len = day.length-1;
	for(var j = 0; j<len ; j++){
		day.remove(1);
	}
	
	// create days array
	var days = new Array(12);
	days[0]  = 31;
	days[1]  = ( new Date(year,2-1,29).getDate()==29)? 29:28;
	days[2]  = 31;
	days[3]  = 30;
	days[4]  = 31;
	days[5]  = 30;
	days[6]  = 31;
	days[7]  = 31;
	days[8]  = 30;
	days[9]  = 31;
	days[10] = 30;
	days[11] = 31;

	var max_date = new Date();
	max_date.setTime(max_day*1000);
	
	var isThisMonth = max_date.getMonth()+1 == month;
	var isThisYear  = max_date.getFullYear() == year;
		
	for(var i = 1; i<days[month-1]+1; i++){
		var y=document.createElement('option');
	  	y.text= i;
	  	y.value= i;
		try{
	    	day.add(y,null); // standards compliant
	    }catch(ex){
	    	day.add(y); // IE only
	    }
		if(isThisMonth && isThisYear && i==max_date.getDate()) break;
	}
}

function checkInput(e){
	var keynum
	var keychar
	var numcheck
	var bs
	
	if(window.event) {// IE
		keynum = e.keyCode;
	}else if(e.which){ // Netscape/Firefox/Opera
		keynum = e.which;
	}
	keychar = String.fromCharCode(keynum)
	bs = /[\b]/;
	numcheck = /\d/;
	return (numcheck.test(keychar) || bs.test(keychar));
}

function checkValid(){
	var form = document.getElementById('path-form');
	
	var input;
	var name;
	var submit;
	var isset = true;
	
	for(var i = 0; i< form.elements.length; i++){
		
		input = form.elements[i];
		name = input.name.substr(0,3);
		
		if((name == 'obl' || name == 'bra')){	
			if(input.type == 'text'){
				isset = isset && (input.value > 0);
			}else if(input.type == 'select-one'){
				isset = isset && (input.options[input.selectedIndex].value != '');
			}
		}else{
			isset = isset && true;
		}
	}
	
	return isset;
}