function showLoading() {
	body = document.getElementsByTagName("body")[0];
	div = document.createElement("div");
	div.setAttribute("id", "loadingscreen");
	body.appendChild(div);
	div.innerHTML = '<div id="blacklayer"></div><div id="loadinganimation"><p class="animation">Einen Moment bitte.</p><p class="foot">Ihre Daten werden berechnet und zusammengestellt.</p></div>';

	var version6 = /MSIE 6\./;
	if (navigator.appName == "Microsoft Internet Explorer" && version6.test(navigator.appVersion)) {
		bl = _("blacklayer");
		bl.style.width = body.parentNode.offsetWidth + "px";
		bl.style.height = body.parentNode.offsetHeight + "px";
		window.scrollTo(0,0);
	}
}
function chkFormular()
{
   if(document.tt_strom_result_form.searchCritera.zipCode.value == "")
  {
   alert("Bitte Ihren Postleitzahl eingeben!");
   document.tt_strom_result_form.searchCritera.zipCode.focus();
   return false;
  }
     if(document.tt_strom_result_form.searchCritera.consumptionPerYear.value == "")
  {
   alert("Bitte Ihren Verbrauch eingeben!");
   document.tt_strom_result_form.searchCritera.consumptionPerYear.focus();
   return false;
  }
}