function descr_show(id)
{
	var small_text = document.getElementById('descr_small_' + id);
	var full_text = document.getElementById('descr_full_' + id);
	var button = document.getElementById('button_' + id);

	if(small_text.style.display == 'block')
	{
		small_text.style.display = 'none';
		full_text.style.display = 'block';
	}
	else
	{
		small_text.style.display = 'block';
		full_text.style.display = 'none';
//		button.innerHTML = 'показать текст целиком';
        window.location.href = '#labelsong';
	}
}

function getSessId()
{	
	var c_name = "karaokeru_session";
	if (document.cookie.length>0)
	{
		c_start=document.cookie.indexOf(c_name + "=");
		if (c_start!=-1)
		{
			c_start=c_start + c_name.length+1; 
			c_end=document.cookie.indexOf(";",c_start);
			if (c_end==-1) c_end=document.cookie.length;
			return unescape(document.cookie.substring(c_start,c_end));
		} 
	}
	return "";
}

function setSessId(sessId)
{
	var c_name = "karaokeru_session";
	var value = sessId;
	var expiredays = 365;
	var exdate=new Date();
	exdate.setDate(exdate.getDate()+expiredays);
	document.cookie=c_name+ "=" +escape(value)+
	((expiredays==null) ? "" : ";expires="+exdate.toGMTString()) + ";path=/";
}