function enableButtonOnCheck()
{
  var checkboxObj = document.getElementById("checkbox_confirm");
  var buttonObj = document.getElementById("submit_button");
  
  if( checkboxObj.checked == true )
  {
    buttonObj.disabled=false;
  }
  else
  {
    buttonObj.disabled=true;
  }
}

function redirect(val)
{
  location.href=val;
}

function enableTextArea(ta_id, checkbox_id)
{
  var x = document.getElementById(checkbox_id);
  if(x.checked == true)
  {
    document.getElementById(ta_id).disabled=false;
  }
  else
  {
    document.getElementById(ta_id).disabled=true;
  }
}

function showAutoForm()
{
  document.getElementById("autoform").style.visibility="visible";
  document.getElementById("autoform").style.display="";
  
  document.getElementById("homeform").style.display="none";
  document.getElementById("homeform").style.visibility="collapse";
  
}

function showHomeForm()
{
  document.getElementById("homeform").style.visibility="visible";
  document.getElementById("homeform").style.display="";
  
  document.getElementById("autoform").style.display="none";
  document.getElementById("autoform").style.visibility="collapse";
}

function showCarFields()
{
  document.getElementById("car_option_fields").style.visibility="visible";
  document.getElementById("car_option_fields").style.display="";
}

function showDriverFields()
{
  document.getElementById("driver_option_fields").style.visibility="visible";
  document.getElementById("driver_option_fields").style.display="";
}

/*function collapseEverything()
{
  document.getElementById("homeform").style.visibility="collapse";
}*/

function swapImageOver(imgObj)
{
  imgObj.src = "./images/"+imgObj.id+"_over.png";
}

function swapImageOut(imgObj)
{
  imgObj.src = "./images/"+imgObj.id+".png";
}

function initShowCoverup()
{
  document.getElementById("coverup").style.visibility = "visible";
  document.getElementById("coverup").style.display = "";     
}
    

function activateTab( obj, active_className, inactive_className, parentId, arrowId, src ) 
{ 
  //alert(src);
  //alert(obj.title);
  if( obj.title == "auto" || obj.title == "home" )
  {
    document.getElementById("coverup").style.visibility = "visible";
    document.getElementById("coverup").style.display = "";
    if(obj.title == "auto")
    {
      document.getElementById("coverupImg").src = "./images/autocover.jpg";
    }
    else
    {
      document.getElementById("coverupImg").src = "./images/homecover.jpg";
    }
  }
  else
  {
    document.getElementById("coverup").style.visibility = "hidden";
    document.getElementById("coverup").style.display = "none";
  }

  var parentObj = document.getElementById(parentId);

  var divArr = parentObj.getElementsByTagName("div");
  
    for(i = 0; i < divArr.length; i = i + 1 )
    {
      divArr[i].className = inactive_className;
    }
    
  obj.className = active_className;

  var arrowObj = document.getElementById(arrowId);
  
  var spanArr = parentObj.getElementsByTagName("span");
  
    for(i = 0; i < spanArr.length; i = i + 1 )
    {
      spanArr[i].style.visibility = "hidden";
    }
  
  arrowObj.style.visibility = "visible";
  
  var myframe = document.getElementById("myframe");
  
  myframe.src = src;
  //alert(src)
}

function loadSectionImage(section)
{
  var imgElem = document.getElementById("sectionImage");
  
  if(section == "")
  {
    imgElem.src = "./images/section_image_about.jpg";
  }
  else
  {  
    imgElem.src = "./images/section_image"+section+".jpg";
  }
}