function check_search(LG)
{
	form = document.forms['search'];
	form.elements['act'].value = "search";
	form.submit();
	
	
}

function check_relation(ob)
{
	if (ob.options[0].selected == true)
	{
		for (i=0;i<ob.options.length;i++){
		ob.options[i].selected=false; 
		}
		ob.options[0].selected = true;
	}	 
}