$(document).ready(function(){
	select_project();
 });


$("select").change(function () {
	select_project();
});

var checkAll;

function select_project() {
	$('div#project').css({display: 'block'});
	
	var branche = jQuery.trim($("select#branche option:selected").val());
	var aktionsart = jQuery.trim($("select#aktionsart option:selected").val());
	var einsatzpersonaltyp = jQuery.trim($("select#einsatzpersonaltyp option:selected").val());
	
	$('div#project div').each(function (i) {
		
		var class_project = $(this).attr('class');
		
		class_length = class_project.length;
		
		while (class_project.charCodeAt(0) < 65 || class_project.charCodeAt(0) > 122 ) { class_project = class_project.substr(1) };
		
		$(this).css({ display: 'none' });
		checkAll = false;
	});
	
	$('div#project div').each(function (i) {
		//alert($(this).attr('class'));
		if ($(this).hasClass(branche) && $(this).hasClass(aktionsart) && $(this).hasClass(einsatzpersonaltyp) ) {
			$(this).css({ display: 'block' });
			checkAll = true;
		} 
	});
	
	if (checkAll) {
		$('div#project span').css('display', 'none');
	} else {
	  $('div#project span').css('display', 'block');
	}
}