//onload
document.observe("dom:loaded", function() {

  bzs_onload();

});

function bzs_onload(){

	var mel_submits = $$( '.mel_submit_into_basket');
	for (var i = 0; i < mel_submits.length; ++i){
		mel_submits[i].observe('click', function(event){
			if(this.parentNode.firstChild.value == "0"){
				alert('Bitte geben Sie eine Menge ein.');
                                return false;
			}else{
				this.parentNode.submit();
			}
		});
	}
	
    // show js fields
    var mel_show = $$( '.mel_show');
    for (var i = 0; i < mel_show.length; ++i){
		mel_show[i].show();
	}
	
	// category select
	var mel_select_cat = $$('.mel_select_cat');
	for (var i = 0; i < mel_select_cat.length; ++i){
		mel_select_cat[i].observe('change', function(event){
			$('selectcategory').submit();
		});
	}

}