var highlight_left = new Image();
highlight_left.src = "../images/design/highlight_left.png";

var highlight_right = new Image();
highlight_right.src = "../images/design/highlight_right.png";

var highlight_middle = new Image();
highlight_middle.src = "../images/design/highlight_middle.png";

function highlight(idElement) {
	// ziska element -> levy okraj
	var left = document.getElementById(idElement + '_left');
	left.style.backgroundImage = 'url("' + highlight_left.src + '")';
	// ziska element -> pravy okraj
	var right = document.getElementById(idElement + '_right');
	right.style.backgroundImage = 'url("' + highlight_right.src + '")';
	// ziska element -> stredni ocast
	var middle = document.getElementById(idElement + '_middle');
	middle.style.backgroundImage = 'url("' + highlight_middle.src + '")';
}

function unhighlight(idElement) {
	// ziska element -> levy okraj
	var left = document.getElementById(idElement + '_left');
	left.style.backgroundImage = 'none';
	// ziska element -> pravy okraj
	var right = document.getElementById(idElement + '_right');
	right.style.backgroundImage = 'none';
	// ziska element -> stredni cast
	var middle = document.getElementById(idElement + '_middle');
	middle.style.backgroundImage = 'none';
}

function addParam(tableId) {
	
	var table = document.getElementById(tableId);

	var nazevArray = document.getElementsByName("nazev[]");
	var hodnotaArray = document.getElementsByName("hodnota[]");
	
	var inputNazev = new Array();
	var inputHodnota = new Array();
	
	for (var i = 0; i < nazevArray.length; i++) {
		inputNazev.push(nazevArray[i].value);
		inputHodnota.push(hodnotaArray[i].value);
	}
	
	inputNazev.push('');
	inputHodnota.push('');
	
	table.innerHTML += '<tr><td><input type="text" name="nazev[]" size="20" /></td><td><input type="text" name="hodnota[]" size="50" /></td><td></td></tr>\r\n';
	
	nazevArray = document.getElementsByName("nazev[]");
	hodnotaArray = document.getElementsByName("hodnota[]");
	
	for (var i = 0; i < inputNazev.length; i++) {
		nazevArray[i].value = inputNazev[i];
		hodnotaArray[i].value = inputHodnota[i];
	}

}