function language_change()
{
	var lang = document.getElementById("language");
	if(lang.selectedIndex == lang.options.length-1) 
	{
		document.getElementById("lang_other").disabled = false;
	}
	else 
	{
		document.getElementById("lang_other").disabled = true;
	}
}
function country_change()
{
	var lang = document.getElementById("country");
	if(lang.selectedIndex == lang.options.length-1) 
		document.getElementById("cntry_other").disabled = false;
	else document.getElementById("cntry_other").disabled = true;
}


function check_share()
{
	var check = true;
	var form_share = document.getElementById("form_share");
	
	// check form values
	if(form_share.user.value == '') check = false;
	if(form_share.user.value.substring(0, 6) == 'Your N') check = false;
	
	if(form_share.email.value == '') check = false;
	if(form_share.email.value.substring(0, 6) == 'Your E') check = false;
	
	if(form_share.name.value == '') check = false;
	if(form_share.name.value.substring(0, 10) == 'Radio Stat') check = false;
	
	if(form_share.website.value == '') check = false;
	if(form_share.website.value.substring(0, 10) == 'Radio Stat') check = false;
	
	if(form_share.url.value == '') check = false;
	if(form_share.url.value.substring(0, 10) == 'Radio Stat') check = false;
	
	if(document.getElementById("language").selectedIndex==0) check = false;
	if(document.getElementById("country").selectedIndex==0) check = false;
	if(document.getElementById("type").selectedIndex==0) check = false;
	if(document.getElementById("language").selectedIndex==document.getElementById("language").options.length-1
		&& form_share.lang_other.value=='') check = false;
	if(document.getElementById("country").selectedIndex==document.getElementById("country").options.length-1
		&& form_share.cntry_other.value=='') check = false;
	
	if(!check) 
	{
		alert('Please fill out all the required fields.');
		return false;
	}
	else 
	{
		check = check_url();
		if(check)
		{	
			if(form_share.description.value.substring(0, 10) == 'Radio Stat') 
				form_share.description.value = '';
			return true;
		}
		else 
		{
			if(confirm("The link that you have provided does not look like it points to a live stream.")) return true;
			else return false;
		}
	}
}