ns4 = (document.layers)?true:false
ns6 = (!document.all && document.getElementById)? true:false
ie = (document.all)? true:false

function openPopup(strUrl,strName, intWidth, intHeight, intLeft, intRight){
	focusWindow = window.open(strUrl, strName , 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,copyhistory=no,width=' + intWidth + ',height=' + intHeight + ',left=' + intLeft + ',top=' + intRight + '\'');
}

function signin(){
	if(ie)
	{
		if(document.all['signin'].style.visibility == "visible")
		{
			document.all['signin'].style.visibility = "hidden";
		}
		else
		{
			document.all['signin'].style.visibility = "visible";
		}
	}
	else if(ns6)
	{
		if(document.getElementById('signin').style.visibility == "visible")
		{
			document.getElementById('signin').style.visibility = "hidden";
		}
		else
		{
			document.getElementById('signin').style.visibility = "visible";
		}
	}
}


function changeLanguage()
{
	if(ie)
	{
		if(document.all['languageSwitch'].style.visibility == "visible")
		{
			document.all['languageSwitch'].style.visibility = "hidden";
		}
		else
		{
			document.all['languageSwitch'].style.visibility = "visible";
		}
	}
	else if(ns6)
	{
		if(document.getElementById('languageSwitch').style.visibility == "visible")
		{
			document.getElementById('languageSwitch').style.visibility = "hidden";
		}
		else
		{
			document.getElementById('languageSwitch').style.visibility = "visible";
		}
	}
}

function ind_pa_validateExpertContact()
{
	if(document.forms['frmContact'].name.value == "" || document.forms['frmContact'].firstname.value == "" || document.forms['frmContact'].country.value == "" || document.forms['frmContact'].mail.value == "")
		{
			alert("Please fill out all required fields (marked with an *)");
			return false;
		}
	else
		return true;
}