function getWindowHeight() {

			var windowHeight = 0;

			if (typeof(window.innerHeight) == 'number') {

				windowHeight = window.innerHeight;

			}

			else {

				if (document.documentElement && document.documentElement.clientHeight) {

					windowHeight = document.documentElement.clientHeight;

				}

				else {

					if (document.body && document.body.clientHeight) {

						windowHeight = document.body.clientHeight;

					}

				}

			}

			return windowHeight;

		}



		function setFooter() {

			if (document.getElementById) {

				var windowHeight = getWindowHeight();

				if (windowHeight > 0) {

					var contentHeight = document.getElementById('container').offsetHeight;

					var footerElement = document.getElementById('footer');

					var footerHeight  = footerElement.offsetHeight;

					alert(footerHeight);

					if (windowHeight - (contentHeight + footerHeight) >= 0) {

						footerElement.style.position = 'relative';

						footerElement.style.top = (windowHeight - (contentHeight + footerHeight)) + 'px';

					}

					else {

						footerElement.style.position = 'static';

					}

				}

			}

		}



		function copyDetail()

		{

      $('detail_postal_name').value =  $('detail_billing_name').value;

      $('detail_postal_country').selectedIndex =   $('detail_billing_country').selectedIndex;

      $('detail_postal_isz').value =   $('detail_billing_isz').value;

      $('detail_postal_varos').value = $('detail_billing_varos').value;

      $('detail_postal_cim').value =   $('detail_billing_cim').value;

		}



    function copyDetailPda()

    {

      form = document.detailform;

      form.detail_postal_name.value =  form.detail_billing_name.value;

      form.detail_postal_country.selectedIndex =   form.detail_billing_country.selectedIndex;

      form.detail_postal_isz.value =   form.detail_billing_isz.value;

      form.detail_postal_varos.value = form.detail_billing_varos.value;

      form.detail_postal_cim.value =  form.detail_billing_cim.value;

    }



		function showBillings()

		{

		  if ($('detail_is_want_invoice').checked) $('billing_details').style.display='block';

		    else $('billing_details').style.display='none';

		}



		function isEmail(string) {

    if (string.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1)

			return true;

    else

			return false;

    }