function onInputBlur(inputID, valueText) {
    if(document.getElementById(inputID).value == '') {
      document.getElementById(inputID).value = valueText;
    }
}

function onInputFocus(inputID, valueText) {
    if(document.getElementById(inputID).value == valueText) {
      document.getElementById(inputID).value = '';
    }
}

function lightsoff(x){
   /*document.getElementById('overlay').style.display = "";
   if (x < 80)
   {
      x = x + 10;
      document.getElementById('overlay').style.opacity = x/100;
      //document.getElementById('overlay').style.-moz-opacity = x/100;
      //document.getElementById('overlay').style.-khtml-opacity = x/100;
      document.getElementById('overlay').style.filter.alpha.opacity = x;
      setTimeout('lightsoff('+x+')',100);
   }*/
   document.getElementById('overlay').style.display = "";
}
function lightson(x){
   /*document.getElementById('overlay').style.display = "none";
   if (x > 0)
   {
      x = x - 10;
      document.getElementById('overlay').style.opacity = x/100;
      //document.getElementById('overlay').style.-moz-opacity = x/100;
      //document.getElementById('overlay').style.-khtml-opacity = x/100;
      document.getElementById('overlay').style.filter.alpha.opacity = x;
      setTimeout('lightson('+x+')',100);
   }*/
   document.getElementById('overlay').style.display = "none";
}
function pausecomp(millis)
{
var date = new Date();
var curDate = null;

do { curDate = new Date(); }
while(curDate-date < millis);
}


/* Generic Form Validation */
window.onload = attachFormHandlers;

function attachFormHandlers()
{

  if (document.getElementsByTagName)
  {
    var objForm = document.getElementsByTagName('form');

    for (var iCounter=0; iCounter<objForm.length; iCounter++)
      objForm[iCounter].onsubmit = function(){return checkForm(this);}
  }
}

function checkForm(objForm)
{
  var arClass, bValid;
  var objField = objForm.getElementsByTagName('*');

  for (var iFieldCounter=0; iFieldCounter<objField.length; iFieldCounter++)
  {
    arClass = objField[iFieldCounter].className.split(' ');
    for (var iClassCounter=0; iClassCounter<arClass.length; iClassCounter++)
    {
      //alert(arClass[iClassCounter]);
      switch (arClass[iClassCounter])
      {
        case 'string':
           bValid = isString(objField[iFieldCounter].value.replace(/^\s*|\s*$/g, ''));
           break;
        case 'string_check':
           bValid = isString(objField[iFieldCounter].value.replace(/^\s*|\s*$/g, ''));
           break;
        case 'number' :
           bValid = isNumber(objField[iFieldCounter].value);
           break;
        case 'email' :
           bValid = isEmail(objField[iFieldCounter].value);
           break;
        case 'telephone' :
           bValid = isTelephone(objField[iFieldCounter].value);
           break;
        case 'postcode' :
           bValid = isPostcode(objField[iFieldCounter].value);
           break;
        case 'password' :
           bValid = isPassword(objField[iFieldCounter].value);
           break;
        case 'check' :
           bValid = isChecked(objField[iFieldCounter].checked);
           break;
        case 'style' :
          for (var i=0; i < objForm.style.length; i++)
          {
            bValid = isSelected(objForm.style[i].checked)
            if(bValid == true)
            {
              break;
            }
          }
          break;
        case 'depth' :
          for (var i=0; i < objForm.depth.length; i++)
          {
            bValid = isSelected(objForm.depth[i].checked)
            if(bValid == true)
            {
              break;
            }
          }
          break;

        case 'edge' :
          for (var i=0; i < objForm.edge.length; i++)
          {
            bValid = isSelected(objForm.edge[i].checked)
            if(bValid == true)
            {
              break;
            }
          }
          break;
        case 'send_method' :
          for (var i=0; i < objForm.send_method.length; i++)
          {
            bValid = isSelected(objForm.send_method[i].checked)
            if(bValid == true)
            {
              break;
            }
          }
          break;
        default:
           bValid = true;
      }

      if (bValid == false)
      {
        s = new String(objField[iFieldCounter].name);
        s = s.replace(/_/g," ");

        if(arClass[iClassCounter] == 'style')
        {
          alert('Please make sure you choose a ' + s);
          return false;
        }
        else if(arClass[iClassCounter] == 'depth')
        {
          alert('Please make sure you choose a ' + s);
          return false;
        }
        else if(arClass[iClassCounter] == 'edge')
        {
          alert('Please make sure you choose an ' + s);
          return false;
        }
        else if(arClass[iClassCounter] == 'send_method')
        {
          alert('Please make sure you select the method of which we will receive your images');
          return false;
        }
        else
        {
          alert('Please check the value you entered for ' + s);
          objField[iFieldCounter].focus();
          return false;
        }
      }
    }
  }

  if(document.getElementById('square_size') && document.getElementById('rectangle_size'))
  {
    //alert(document.getElementById('square_size').value + ' - ' +document.getElementById('rectangle_size').value);
    if(document.getElementById('rectangle_size').value == "" && document.getElementById('square_size').value == "")
    {
      alert("Please select a canvas size");
      return false;
    }
  }

  return true;
}

function isString(strValue)
{
  return (typeof strValue == 'string' && strValue != '' && isNaN(strValue));
}

function isNumber(strValue)
{
  return (!isNaN(strValue) && strValue != '');
}

function isChecked(blnChecked)
{
  return blnChecked;
}

function isSelected(blnChecked)
{
  return blnChecked;
}

function isTelephone(strValue)
{
  return (strValue != '');
}

function isPostcode(strValue)
{
  if(document.getElementById('postcode_mandatory'))
  {
   if(document.getElementById('postcode_mandatory').style.visibility == 'hidden')
   {
    return true;
   }
   else
   {
    return (strValue != '');
   }
  }
  else
  {
   return (strValue != '');
  }
}

function isPassword(strValue)
{
  return (strValue != '');
}

function isEmail(strValue)
{
  var objRE = /^[\w-\.\']{1,}\@([\da-zA-Z-]{1,}\.){1,}[\da-zA-Z-]{2,}$/;

  return (strValue != '' && objRE.test(strValue));
}