function addLoadEvent(func)
{
	var oldonload = window.onload;
	if (typeof window.onload != 'function')
	{
		window.onload = func;
	}
	else
	{
		window.onload = function()
		{
			if (oldonload)
			{
				oldonload();
			}
			func();
		}
	}
}

function externalLinks()
{
	if (!document.getElementsByTagName) 
		return;

	var anchors = document.getElementsByTagName("a");
	for (var i=0; i<anchors.length; i++)
	{
		var anchor = anchors[i];
		if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external")
			anchor.target = "_blank";                                               
	}
}

addLoadEvent (externalLinks);


function validate(lang)
{
	err_field = new Array();
	err_field['lt'] = 'Prašome užpildyti visus laukelius.';
	err_field['en'] = 'Please fill all fields.';
	err_field['ru'] = 'Заполните пожалуйста все поля.';

	if (document.getElementById('name').value == '' || document.getElementById('phone').value == '' || document.getElementById('message').value == '')
	{
		document.getElementById('error').style.display = 'block';
		document.getElementById('error').innerHTML = err_field[lang];

		return false;
	}
}