function showContact() {
	var staplerData = $.getJSON("fileadmin/templates/_scripts/stapler.js", function(json){
		var givenZip = document.getElementById('stapler_plz').value;
		var data = json.items;
		var merchant_id = 0;
		for (var i=0; i < data.length; i++) {
			if (givenZip >= data[i].from && givenZip <= data[i].to) {
				var merchant_id = data[i].contact_id;
				break;
			}
		}
		if (merchant_id != 0) {
			showBlock(merchant_id);
		} else {
			showBlock('invalidzip');
		}
	});
}