function $(id) {
		return document.getElementById(id);
	}
	
	
	var prev_color;
	function setSubColor(obj, action) {
		if(action == "set") {
			prev_color = obj.style.backgroundColor;
			obj.style.backgroundColor = "#05E700";
		}
		else if(prev_color){
			obj.style.backgroundColor = prev_color;
		}
	}
	
	function setRegType(type) {
		if(type == 'pravnicka') {
			$('box_pravnicka').style.display = 'block';
		}
		else {
			$('box_pravnicka').style.display = 'none';
		}
	}

  function setDelAddr() {
  	if($('same_inv_address').checked)
  		$('box_inv_addr').style.display = 'none';
  	else
  		$('box_inv_addr').style.display = 'block';
  		
  }
 
 	function addToBasket(IDproduct) {
	
		global_action = 'add_to_basket';
		
		var url = $('server_www').value+'ajax/?action='+global_action+'&IDproduct='+IDproduct;

		GetUrl(url);
	}
	
	function success(){

		var response = htmlConnection.responseText;
		if(global_action == 'send_tree') ;
		else if(global_action == 'add_to_basket') {
			var arr_response = response.split(";");
			$('basket_price').innerHTML=arr_response[0];
			$('basket_pcs').innerHTML=arr_response[1];
			/*$('alert_price').innerHTML=arr_response[0];
			$('alert_pcs').innerHTML=arr_response[1];*/
			
			openAlert('alert_add_to_basket');
	  }
		else if(global_action == 'change_pcs') {
			var arr_response = response.split(";");
			document.getElementById('basket_price').innerHTML=arr_response[0];
			document.getElementById('basket_final_price').innerHTML=arr_response[0];
	
			document.getElementById('basket_pcs').innerHTML=arr_response[1];
			document.getElementById('prod_price_'+IDproduct).innerHTML=arr_response[2]+',-';
	  }
	}
	
	
	function closeAlert(id) {
		
		alertController(id);
	
		$(id).style.display = 'none';
	}
	
	function openAlert(id) {
	
		alertController(id);
	
		//$(id).style.display = 'block';
	}
	
	
	function alertController(id) {

		if(id != 'alert_add_to_basket') $('alert_add_to_basket').style.display = 'none';
	}
	
	  
  function basketAction(action) {
  	$('basket_action').value = action;
  	$('basket_form').submit();
  }

	function changePcs(id, pcs) {
	
		global_action = 'change_pcs';

		IDproduct = id;

		var url = $('server_www').value+'ajax/?action='+global_action+'&IDproduct='+id+'&pcs='+pcs;

		GetUrl(url);
	}
	
	function isSouhlas() {
		if(!$('obch_souhlas').checked) 
			alert('Musíte souhlasit s obchodními podmínkami');  
		else $('order_form').submit();
	}
	
	function addField()
	{
		var end = $('produkty_tbl');
		var ID = $('next_id').value * 1 + 1;
		$('next_id').value = ID;

		if (navigator.appName != 'Microsoft Internet Explorer')
		{
			
	    var tr = document.createElement('tr');
	    end.appendChild(tr);
		
		  var td1 = document.createElement('td');
	    tr.appendChild(td1);
		  var td2 = document.createElement('td');
	    tr.appendChild(td2);
		  var td3 = document.createElement('td');
	    tr.appendChild(td3);

	    var input1 = document.createElement('input');
	    input1.className='text';
	    input1.setAttribute('type', 'text');
	    input1.setAttribute('id', 'nazev_'+ID);
	    input1.setAttribute('name', 'nazev['+ID+']');
	    td1.appendChild(input1);
	    
	    var input2 = document.createElement('input');
	    input2.className='text';
	    input2.setAttribute('type', 'text');
	    input2.setAttribute('name', 'kusu['+ID+']');
	    td2.appendChild(input2);
	    
	    var input3 = document.createElement('input');
	    input3.className='text';
	    input3.setAttribute('type', 'text');
	    input3.setAttribute('name', 'katc['+ID+']');
	    td3.appendChild(input3); 
		
			 $('nazev_'+ID).focus();
		}
		else
		{
    	var HTML = 
    	'<table>' +
    	'<tr> ' +
    	'<td><input type="text" name="nazev[' + ID + ']" value="" class="text"/></td>' +
    	'<td><input type="text" name="kusu[' + ID + ']" value="" class="text"/></td>' +
    	'<td><input type="text" name="katc[' + ID + ']" value="" class="text"/></td>' +
    	'</tr>' +
    	'</table>';
    
    	$('produkty_tbl1').insertAdjacentHTML("beforeBegin", HTML);
		}
		
	}