function changeLimit(select) {
	document.location.href="./?limit="+select.value;
}

function changeOrder(select) {
	document.location.href="./?order="+select.value;
}

function setAvailability(availability) {
	var i = document.getElementById('availability');
	i.innerHTML = availability;
}

function setVelikost(vel) {
	document.getElementById('buy_velikost').value = vel;
}

function setDescription(description/*, velikost*/) {
	/*var i = document.getElementById('description');
	i.value = description;*/
	

	var i = document.getElementById('description2');
	i.innerHTML = description;
	
	/*var i = document.getElementById('buy_velikost');
	i.value = parseInt(velikost);*/
}

function show(div) {
	var element = document.getElementById(div);
    if (element.style.visibility != "visible"){
        clearTimeout(self.timer);
        element.style.visibility = "visible";
        element.style.width = "343px";
        element.style.height = "auto";
     }
     else {
        element.style.visibility = "hidden";
        element.style.width = "0px";
        element.style.height = "0px";
      }
}

function zmena(active) {
			/*var kategorie = document.getElementById('kategorie');
			var znacky = document.getElementById('znacky');*/

			var znackyUL = document.getElementById('znackyUL');
			var menuUL = document.getElementById('menuUL');
			
			var t0 = document.getElementById('t0');
			var t1 = document.getElementById('t1');

			if (active == 'kategorie') {
					znackyUL.style.display = 'none';
					menuUL.style.display = 'block';

					t0.className = 't0 selected';
					t1.className = 't1';
			}
			else {
					znackyUL.style.display = 'block';
					menuUL.style.display = 'none';

					t0.className = 't0';
					t1.className = 't1 selected';
			}

			return false;
}

function alertSize() {
  var myWidth = 0, myHeight = 0;
  if( typeof( window.innerWidth ) == 'number' ) {
    //Non-IE
    myWidth = window.innerWidth;
    myHeight = window.innerHeight;
  } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
    //IE 6+ in 'standards compliant mode'
    myWidth = document.documentElement.clientWidth;
    myHeight = document.documentElement.clientHeight;
  } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
    //IE 4 compatible
    myWidth = document.body.clientWidth;
    myHeight = document.body.clientHeight;
  }
  window.alert( 'Width = ' + myWidth );
  window.alert( 'Height = ' + myHeight );
  window.alert(document.body.clientHeight);
}

function getScrollXY() {
  var scrOfX = 0, scrOfY = 0;
  if( typeof( window.pageYOffset ) == 'number' ) {
    //Netscape compliant
    scrOfY = window.pageYOffset;
    scrOfX = window.pageXOffset;
  } else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
    //DOM compliant
    scrOfY = document.body.scrollTop;
    scrOfX = document.body.scrollLeft;
  } else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
    //IE6 standards compliant mode
    scrOfY = document.documentElement.scrollTop;
    scrOfX = document.documentElement.scrollLeft;
  }
  alert(scrOfX);
  alert(scrOfY);
}

function validateSend() {
	var vybranaVelikost = document.getElementById('vybranaVelikost');
	if (vybranaVelikost.selectedIndex == 0) {
		alert("Nejdříve vyberte velikost!");
		return false;
	}
	return true;
}

function validateOrder() {
	var souhlas = document.getElementById('souhlas');
	if (souhlas.checked == true)
	  return true;
	alert('Je potřeba souhlasit s obchodními podmínkami!');
	return false;
}