function slideshow(ship_id,type) {
//  window.open("slideshow.php?id="+ship_id+"&type="+type,"slideshow","height=300,width=400,resizable=yes");
  window.open("slideshow.php?id="+ship_id+"&type="+type,"slideshow","height=650,width=650,resizable=yes,scrollbars=1");
}

function manualslideshow(ship_id,type) {
  window.open("showimages.php?id="+ship_id+"&type="+type,"slideshow");
}

function check(id,type,seq) {
  if (cycle==true) window.location="slideshow.php?id="+id+"&type="+type+"&seq="+seq;
}

function change(id,type,seq) {
  if (cycle==true) {
	cycle=false;
	document.forms[0].elements['control'].value="Start";
  }
  else {
	cycle=true;
	setTimeout("check('"+id+"','"+type+"','"+seq+"')",2000);
	document.forms[0].elements['control'].value="Stop";
  }
}

function checkEmail(form) {
  if (form.elements['email'].value.match(/^[^\x00-\x20()<>@,;:\\".[\]\x7f-\xff]+(?:\.[^\x00-\x20()<>@,;:\\".[\]\x7f-\xff]+)*\@[^\x00-\x20()<>@,;:\\".[\]\x7f-\xff]+(?:\.[^\x00-\x20()<>@,;:\\".[\]\x7f-\xff]+)+$/)==null) {
	alert("Please enter a valid email address");
	form.elements['email'].focus();
	return false;
  }
  else return true;
}

function checkForm(form) {
  if (checkEmail(form)) {
	if (form.elements['name'].value=="") {
	  alert("Please enter your name");
	  form.elements['name'].focus();
	  return false;
	}
	if (form.elements['adults'].value=="") {
	  alert("Please select the number of adults");
	  form.elements['adults'].focus();
	  return false;
	}
	else return true;
  }
  else return false;
}

function checkContactForm(form) {
  if (form.elements['name'].value=="") {
	alert("Please enter your name");
	form.elements['name'].focus();
	return false;
  }
  if (form.elements['email'].value.match(/^[^\x00-\x20()<>@,;:\\".[\]\x7f-\xff]+(?:\.[^\x00-\x20()<>@,;:\\".[\]\x7f-\xff]+)*\@[^\x00-\x20()<>@,;:\\".[\]\x7f-\xff]+(?:\.[^\x00-\x20()<>@,;:\\".[\]\x7f-\xff]+)+$/)==null) {
	alert("Please enter a valid email address");
	form.elements['email'].focus();
	return false;
  }
  if (form.elements['question'].value=="") {
	alert("Please enter your question");
	form.elements['question'].focus();
	return false;
  }
  return true;
}