function clearText(obj, txt)
{
    if(obj.value == txt)
        obj.value = '';
}
function putText(obj, txt)
{
    if(obj.value == '')
        obj.value = txt;
}

// Hide one or more elements
function HideElements(elements) 
{
	//alert("HideElements");
	
	var arrElements = elements.split(",");
	var elem;
	
	for(i=0; i < arrElements.length; i++)
	{
		elem = document.getElementById(arrElements[i]);
		
		//elem.style.visibility = "hidden";
		elem.style.display = "none";
	}
	
	//alert("HideElements() - End");
}


// Hide one or more elements
function ShowElements(elements) 
{
	//alert("ShowElements");
	
	var arrElements = elements.split(",");
	var elem;

	for(i=0; i < arrElements.length; i++)
	{
		elem = document.getElementById(arrElements[i]);
		
		//elem.style.visibility = "visible";
		elem.style.display = "inline";
	}
}

function echeck(str) 
{
	var at = "@";
	var dot = ".";
	var lat = str.indexOf(at);
	var lstr = str.length;
	var ldot = str.indexOf(dot);
	
	if (str.indexOf(at)==-1)
		return false;

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr)
		return false;

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr)
		return false;

	if (str.indexOf(at,(lat+1))!=-1)
		return false;

	if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot)
		return false;

	if (str.indexOf(dot,(lat+2))==-1)
		return false;

	if (str.indexOf(" ")!=-1)
		return false;

 	return true					
}

// Check password complexity
function CheckPassword(password)
{
	var x = (password.length >= 6) && ((password.match("[a-z]") != null) || (password.match("[A-Z]") != null)) && (password.match("[0-9]") != null)
	
	//alert(x);
	
	return x;
}

function GetSelectedText(elementID)
{
	//alert("GetSelectedText");
	
	elem = document.getElementById(elementID);
	
	//alert(elem.options[elem.selectedIndex].value);
	
	var str = elem.options[elem.selectedIndex].text;
	return str;
}

function AddToFavorites() 
{ 
    if (document.all)
    { 
        // For Internet Explorer:
        window.external.AddFavorite("http://www.alentejotours.pt", "alentejotours - Todo o turismo do Alentejo");
    } 
    else if (window.sidebar) 
    { // For Firefox:
        window.sidebar.addPanel("alentejotours - Todo o turismo do Alentejo", "http://www.alentejotours.pt", "");
    }
}