function js_trim(s)
	{
		s=s.replace(/ +$/, ""); // oaaeaiea oainoiauo i?iaaeia
		s=s.replace(/^ +/, ""); // oaaeaiea aaaoueo i?iaaeia
		s.replace(/(^\s*)|(\s*$)/,"");
		return s;	
	}
	
	function filt_by_exp(el)
	{
		document.location.href = 'index.php?ind=co_sh&expert_id='+el.value;
	}
	
	function filt_by_exp_long(el)
	{
		document.location.href = 'index.php?ind=co_long&expert_id='+el.value;
	}
	
	function filt_by_exp_long_1(el)
	{
		document.location.href = 'index.php?ind=co_long_1&expert_id='+el.value;
	}
	
	function filt_by_exp_consult(el)
	{
		document.location.href = 'index.php?ind=consult&expert_id='+el.value;
	}	
	
	function filt_by_exp_common(el)
	{
		document.location.href = 'index.php?ind=co_sh_common&expert_id='+el.value;
	}
	
	function filt_by_exp_long_common(el)
	{
		document.location.href = 'index.php?ind=co_long_common&expert_id='+el.value;
	}
	
	function filt_by_exp_long_1_common(el)
	{
		document.location.href = 'index.php?ind=co_long_1_common&expert_id='+el.value;
	}	
	
	
	function check_order_fields(form_name, mes1, mes2, mes3)
	{
		if(js_trim(document.forms[form_name].elements["name"].value)=="")
		{
			alert(mes1);
			return false;
		}
		
		if(js_trim(document.forms[form_name].elements["tel"].value)=="")
		{	
			alert(mes2);
			return false;
		}

		
		str=document.forms[form_name].elements["email"].value;
		
		
		if(str.indexOf("@")==-1)
		{
			alert(mes3);
			return false;
		}

		
		return true;
	}
	
	function check_fb_fields(form_name, mes1)
	{
		if(js_trim(document.forms[form_name].elements["name"].value)=="")
		{
			alert(mes1);
			return false;
		}
		
		return true;
	}
	
	function check_att()
	{
		str=document.getElementById("email").value;
		
		if(str.indexOf("@")==-1)
		{
			alert("E-Mail duzgun deyl!");
			return false;
		}
		
		return true;
	}