function det_img(url, jsl, w, h) {
  window.open(url, jsl, "toolbar=0,location=0,scrollbars=0,width=w,height=h,resizable=1,top=60,left=60")

}

function over_checkbox(){
		if (document.form_checkbox.input_checkbox.checked==true) {
			return true;
		} else {
			window.alert("Pro odeslání objednávky musíte souhlasit o obchodními podmínkami.");
		}
			
}

function openWindow() {
		window.open("","JSL",'toolbar=0,location=0,scrollbars=0,width=400,height=300,resizable=1,top=20,left=20');
	}
function OpenJSLWindow(url, jmeno, w, h)
{
    Fokus = window.open(url, "JSL",'resizable=0,scrollbars=1,top=20,left=20,menubar=0,width=' + w + ',height=' + h);
    Fokus.focus()
}


function kontrola_callmeback(form) {
 if (
     (form.jmeno.value == "") ||
     (form.phone.value == "") ||
     (form.nahoda.value == "")
     
     )
   {
      alert ("Please fill in all mandatory field.");
      return false;
   } 
 
}


var bHidden = true ; 

function showlayer(object) {
	if (bHidden)
		show(object);
	else
		hide(object);
	bHidden = !bHidden;
}

function show(object) {
  if (document.getElementById) {
    document.getElementById(object).style.visibility = 'visible';
	document.getElementById(object).style.position = 'static'; 
  }
  else if (document.layers && document.layers[object]) {
    document.layers[object].visibility = 'visible';
	document.layers[object].position = 'static'; 
  }
  else if (document.all) {
    document.all[object].style.visibility = 'visible';
	document.all[object].style.position = 'static'; 
  }
}

function hide(object) {
  if (document.getElementById) {
    document.getElementById(object).style.visibility = 'hidden';
	document.getElementById(object).style.position = 'absolute'; 
  }
  else if (document.layers && document.layers[object]) {
    document.layers[object].visibility = 'hidden';
	document.layers[object].position = 'absolute'; 
  }
  else if (document.all) {
    document.all[object].style.visibility = 'hidden';
	document.all[object].style.position = 'absolute'; 

  }
}