function changeImg(product, type, number) {
  
  var productPath = "./fileadmin/img/products/";
  var loopNumber = 1;
  
  while (document.getElementById(type + "_text_" + loopNumber.toString())) {
    
    document.getElementById(type + "_text_" + loopNumber.toString()).style.display = "none";
    
    loopNumber++;
    
  }
  
  with (document) {
    
    getElementById(type + "_img").src = productPath + product + "/" + type + "-" + number.toString() + "-gross.jpg";
    getElementById(type + "_text_" + number.toString()).style.display = "block";
    
  }
  
  return;
  
}

function changeImage(image, image_fullsize, type, number) {
	var loopNumber = 1;
	while (document.getElementById(type + "_text_" + loopNumber.toString())){
		document.getElementById(type + "_text_" + loopNumber.toString()).style.display = "none";
	    loopNumber++;
	}
	with (document){
		getElementById(type + "_img").src = image;
		getElementById(type + "_link").href = image_fullsize;
		getElementById(type + "_text_" + number.toString()).style.display = "block";
	}
	return;
}

function updateZipCode(pointer) {
  
  document.forms[0].elements[0].value = pointer.options[pointer.selectedIndex].value;
  
  return;
  
}

function changeContent(id) {
  
  var divElements = document.getElementById("content_changer").getElementsByTagName("div");
  
  for (var i = 0; i < divElements.length; i++) {
    
    if (divElements[i].id.search(/content_.*/) != -1)
      divElements[i].style.display = "none";
    
  }
  
  document.getElementById("content_" + id).style.display = "block";
  
  return;
  
}

function downloadPDF(pointer) {
  
  var selectedValue = pointer.options[pointer.selectedIndex].value;
  
  if (selectedValue == "")
    return false;
  
  var basePath = "http://www.engerskeramik.de/fileadmin/pdf/";
  
  var winHandle = window.open(basePath + selectedValue, "_blank");
  
  winHandle.focus();
  
  return false;
  
}