function check_pkv_rechner_start_sidebar_input(actform)
{
	var showMsg = false;

	if(actform.elements.gender.value < "1")
	{
		var msg = $('pkv_rechner_start_sidebar_fill_in_gender');
		var field = $('pkv_rechner_start_sidebar_field_gender');
		showMsg = true;
	}
	else if(actform.elements.occupation_group.value < "1")
	{
		var msg = $('pkv_rechner_start_sidebar_fill_in_occupation_group');
		var field = $('pkv_rechner_start_sidebar_field_occupation_group');
		showMsg = true;
	}
	else if(actform.elements.year_of_birth.value < "1")
	{
		var msg = $('pkv_rechner_start_sidebar_fill_in_year_of_birth');
		var field = $('pkv_rechner_start_sidebar_field_year_of_birth');
		showMsg = true;
	}
	
	var alertTip = new Tips($$('.alertTip'), {
			showDelay: 400,
			hideDelay: 400,
			fixed: true
		});
		
	if(showMsg && Browser.Engine.name != "trident")
	{
		msg.setStyle("opacity", 0);
		msg.setStyle("display", "inline");
		msg.set('tween', {duration: 250});
		msg.tween('opacity',1);
		field.tween('border-color', '#f59421');
		
		field.addEvent('click',  function(event) {
			event = new Event(event).stop();
			msg.set('tween', {duration: 300});
			msg.tween('opacity',0);
		    field.tween('border-color', '#ccc');
		});
		
		msg.addEvent('click',  function(event) {
			event = new Event(event).stop();
			msg.set('tween', {duration: 300});
			msg.tween('opacity',0);
		    field.tween('border-color', '#ccc');
		});

		return false;
	}
	else if(showMsg)
	{
		msg.setStyle("display", "inline");
		field.tween('border-color', '#f59421');
		field.addEvent('click',  function(event) {
			event = new Event(event).stop();
			msg.setStyle("display", "none");
			field.tween('border	color', '#ccc');
		});
		msg.addEvent('click',  function(event) {
			event = new Event(event).stop();
			msg.setStyle("display", "none");
			field.tween('border	color', '#ccc');
		});

		return false;
	}
	
}