var isNetscapeBrowser = (navigator.appName == "Netscape");

function getFormElementById(strElementName) {
			if (isNetscapeBrowser) {
				return document.CreateOrder[strElementName];
			}
			else {
				return document.CreateOrder(strElementName);
			}
		}
//*************************
var supportsGetElementById = (document.getElementById) ? true : false;

function getElementByID(strElementName)
{
	if (supportsGetElementById)
	{
		return document.getElementById(strElementName);
	}
	else if (supportsDocumentLayers)
	{
		return document.layers[strElementName];
	}
	else
	{
		return document.all[strElementName];
	}
}

function checkform(myform){
	
	alert(from.transportstylesk.value)
	
	if (myform.firstname.value.length<3 || myform.surname.value.length<3 || myform.street.value.length<3 || 
		myform.city.value.length<3 || myform.zip.value.length<5 || myform.email.value.length<5) {
		alert('Vyplňte všechny potřebné údaje!!');
		return false;
	}
	
	if (!myform.transport1.checked && !myform.transport2.checked && !myform.transport3.checked && !myform.transport4.checked && !myform.transport5.checked) {
		alert('Vyplňte způsob doručení a platby!!');
		return false;
	}
	
	if (document.all.transporthanddiv.style.display == 'none' && document.all.transportpostdiv.style.display == 'none' && document.all.transportskdiv.style.display == 'none') {
		alert('Vyplňte způsob doručení a platby!!');
		return false;
	}
	if (!myform.transportstylepost1.checked && !myform.transportstylepost2.checked && !myform.transportstylehand1.checked && !myform.transportstylehand3.checked && !myform.transportstylesk.checked) {
		alert('Vyplňte způsob doručení a platby!!');
		return false;
	}	
}

function checkform2(myform)
{
	if ((myform.transport1 && !myform.transport1.checked) && (myform.transport2 && !myform.transport2.checked) && !myform.transport3.checked && !myform.transport4.checked && !myform.transport5.checked) 
	{
		alert('Vyplňte způsob doručení a platby!!');
		return false;
	}
	
	if (document.all.transporthanddiv.style.display == 'none' && document.all.transportpostdiv.style.display == 'none' && document.all.transportskdiv.style.display == 'none') 
	{
		alert('Vyplňte způsob doručení a platby!!');
		return false;
	}
	if (!myform.transportstylepost1.checked && !myform.transportstylepost2.checked && !myform.transportstylehand1.checked && !myform.transportstylehand3.checked && !myform.transportstylesk1.checked && !myform.transportstylesk4.checked) 
	{
		alert('Vyplňte způsob doručení a platby!!');
		return false;
	}	
}

function Validate(form){
	if (form.loginus.value == ""){
		alert("Jméno musí být vyplněno!");
		form.loginus.focus();
		return false;
	}
	else if (form.loginpwd.value == ""){
		alert("Heslo musí být vyplněno!");
		form.loginpwd.focus();
		return false;
	}
	else
		return true;
}