// form validation function //
//ClientName,ClientAddress,ClientCity,ClientState,ClientZip,ClientPhone,ClientEmail,InvestigationType,investigationtypeother,SubjectName,SubjectAddress,SubjectCity,SubjectState,SubjectEmail,SubjectAge,SubjectSSN,SubjectDriver,AdditionalDetails
function validate(form) {
  var ClientName = form.ClientName.value;
  var ClientAddress = form.ClientAddress.value;
  var ClientState = form.ClientState.value;
  var ClientZip = form.ClientZip.value;
  var ClientPhone = form.ClientPhone.value;
  var ClientEmail = form.ClientEmail.value;
  var InvestigationType = form.InvestigationType.selectedIndex;
  var SubjectName = form.SubjectName.value;
  var SubjectAddress = form.SubjectAddress.value;
  var SubjectCity = form.SubjectCity.value;
  var SubjectState = form.SubjectState.value;
  var SubjectZip = form.SubjectZip.value;
  var SubjectEmail = form.SubjectEmail.value;
  var SubjectAge = form.SubjectAge.value;
  var SubjectSSN = form.SubjectSSN.value;
  var SubjectDriver = form.SubjectDriver.value;
  var AdditionalDetails = form.AdditionalDetails.value;
  //var domain = form.domain.selectedIndex;
  var nameRegex = /^[a-zA-Z]+(([\'\,\.\- ][a-zA-Z ])?[a-zA-Z]*)*$/;
  var emailRegex = /^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$/;
  var messageRegex = new RegExp(/<\/?\w+((\s+\w+(\s*=\s*(?:".*?"|'.*?'|[^'">\s]+))?)+\s*|\s*)\/?>/gim);
  if(ClientName == "") {
    inlineMsg('ClientName','You must enter client name.',2);
    return false;
  }
  if(ClientAddress == "") {
    inlineMsg('ClientAddress','You must enter client address.',2);
    return false;
  }
  if(ClientState == "") {
    inlineMsg('ClientState','You must enter client state.',2);
    return false;
  }
  if(ClientZip == "") {
    inlineMsg('ClientZip','You must enter client zip code.',2);
    return false;
  }
  if(ClientPhone == "") {
    inlineMsg('ClientPhone','You must enter client phone.',2);
    return false;
  }
  if(ClientEmail == "") {
    inlineMsg('ClientEmail','You must enter client email.',2);
    return false;
  }
  if(!ClientEmail.match(emailRegex)) {
    inlineMsg('ClientEmail','You have entered an invalid client email.',2);
    return false;
  }
  if(ClientZip == "") {
    inlineMsg('ClientZip','You must enter client zip code.',2);
    return false;
  }
  if(InvestigationType == 0) {
    inlineMsg('InvestigationType','You must enter investigation type.',2);
    return false;
  }
  if(SubjectName == "") {
    inlineMsg('SubjectName','You must enter a subject name.',2);
    return false;
  }
  if(SubjectAddress == "") {
    inlineMsg('SubjectAddress','You must enter a subject address.',2);
    return false;
  }
  if(SubjectCity == "") {
    inlineMsg('SubjectCity','You must enter a subjects city.',2);
    return false;
  }
  if(SubjectState == "") {
    inlineMsg('SubjectState','You must enter a subject state.',2);
    return false;
  }
  if(SubjectZip == "") {
    inlineMsg('SubjectZip','You must enter a subject zip code.',2);
    return false;
  }
  if(SubjectEmail == "") {
    inlineMsg('SubjectEmail','You must enter subject email.',2);
    return false;
  }
  if(!SubjectEmail.match(emailRegex)) {
    inlineMsg('SubjectEmail','You have entered an invalid subject email.',2);
    return false;
  }
  if(SubjectAge == "") {
    inlineMsg('SubjectAge','You must enter a subject age.',2);
    return false;
  }
  if(SubjectSSN == "") {
    inlineMsg('SubjectSSN','You must enter a subject SSN.',2);
    return false;
  }
  if(SubjectDriver == "") {
    inlineMsg('SubjectDriver','You must enter a subject drivers licence.',2);
    return false;
  }
  if(!AdditionalDetails.match(messageRegex)) {
    inlineMsg('AdditionalDetails','You have entered an illigal character here.',2);
    return false;
  }
  
  return true;
}

// START OF MESSAGE SCRIPT //

var MSGTIMER = 20;
var MSGSPEED = 5;
var MSGOFFSET = 3;
var MSGHIDE = 3;

// build out the divs, set attributes and call the fade function //
function inlineMsg(target,string,autohide) {
  var msg;
  var msgcontent;
  if(!document.getElementById('msg')) {
    msg = document.createElement('div');
    msg.id = 'msg';
    msgcontent = document.createElement('div');
    msgcontent.id = 'msgcontent';
    document.body.appendChild(msg);
    msg.appendChild(msgcontent);
    msg.style.filter = 'alpha(opacity=0)';
    msg.style.opacity = 0;
    msg.alpha = 0;
  } else {
    msg = document.getElementById('msg');
    msgcontent = document.getElementById('msgcontent');
  }
  msgcontent.innerHTML = string;
  msg.style.display = 'block';
  var msgheight = msg.offsetHeight;
  var targetdiv = document.getElementById(target);
  targetdiv.focus();
  var targetheight = targetdiv.offsetHeight;
  var targetwidth = targetdiv.offsetWidth;
  var topposition = topPosition(targetdiv) - ((msgheight - targetheight) / 2);
  var leftposition = leftPosition(targetdiv) + targetwidth + MSGOFFSET;
  msg.style.top = topposition + 'px';
  msg.style.left = leftposition + 'px';
  clearInterval(msg.timer);
  msg.timer = setInterval("fadeMsg(1)", MSGTIMER);
  if(!autohide) {
    autohide = MSGHIDE;  
  }
  window.setTimeout("hideMsg()", (autohide * 1000));
}

// hide the form alert //
function hideMsg(msg) {
  var msg = document.getElementById('msg');
  if(!msg.timer) {
    msg.timer = setInterval("fadeMsg(0)", MSGTIMER);
  }
}

// face the message box //
function fadeMsg(flag) {
  if(flag == null) {
    flag = 1;
  }
  var msg = document.getElementById('msg');
  var value;
  if(flag == 1) {
    value = msg.alpha + MSGSPEED;
  } else {
    value = msg.alpha - MSGSPEED;
  }
  msg.alpha = value;
  msg.style.opacity = (value / 100);
  msg.style.filter = 'alpha(opacity=' + value + ')';
  if(value >= 99) {
    clearInterval(msg.timer);
    msg.timer = null;
  } else if(value <= 1) {
    msg.style.display = "none";
    clearInterval(msg.timer);
  }
}

// calculate the position of the element in relation to the left of the browser //
function leftPosition(target) {
  var left = 0;
  if(target.offsetParent) {
    while(1) {
      left += target.offsetLeft;
      if(!target.offsetParent) {
        break;
      }
      target = target.offsetParent;
    }
  } else if(target.x) {
    left += target.x;
  }
  return left;
}

// calculate the position of the element in relation to the top of the browser window //
function topPosition(target) {
  var top = 0;
  if(target.offsetParent) {
    while(1) {
      top += target.offsetTop;
      if(!target.offsetParent) {
        break;
      }
      target = target.offsetParent;
    }
  } else if(target.y) {
    top += target.y;
  }
  return top;
}

// preload the arrow //
if(document.images) {
  arrow = new Image(7,80); 
  arrow.src = "images/msg_arrow.gif"; 
}