// form validation function //
function validate(form) {

	var firstname = form.firstname.value;
	var lastname = form.lastname.value;
	var street = form.street.value;
	var city = form.city.value;
	var state = form.state.value;
	var zip = form.zip.value;
	var phoneareacode = form.phoneareacode.value;
	var phoneprefix = form.phoneprefix.value;
	var phonesuffix = form.phonesuffix.value;
	var email = form.email.value;
	var prefvehicle = form.prefvehicle.value;
	var altvehicle = form.altvehicle.value;
	var reservedatemm = form.reservedatemm.value;
	var reservedatedd = form.reservedatedd.value;
	var reservedateyy = form.reservedateyy.value;
	var pickuptimehh = form.pickuptimehh.value;
	var pickuptimemm = form.pickuptimemm.value;
	var pickuptimeampm = form.pickuptimeampm.value;
	var returndatemm = form.returndatemm.value;
	var returndatedd = form.returndatedd.value;
	var returndateyy = form.returndateyy.value;
	var comments = form.comments.value;
  var agreed = form.agreed.value;
	
	

	if(firstname == "") {
    inlineMsg('firstname','Required Field',2);
    return false;
  }
	if(lastname == "") {
    inlineMsg('lastname','Required Field',2);
    return false;
  }
	if(street == "") {
    inlineMsg('street','Required Field',2);
    return false;
  }
	if(city == "") {
    inlineMsg('city','Required Field',2);
    return false;
  }
	if(state == "") {
    inlineMsg('state','Required Field',2);
    return false;
  }
	if(zip == "") {
    inlineMsg('zip','Required Field',2);
    return false;
  }
	if(phoneareacode == "") {
    inlineMsg('phoneareacode','Required Field',2);
    return false;
  }
	if(phoneprefix == "") {
    inlineMsg('phoneprefix','Required Field',2);
    return false;
  }
  if(phonesuffix == "") {
    inlineMsg('phonesuffix','Required Field',2);
    return false;
  }
	if(email == "") {
    inlineMsg('email','Required Field',2);
    return false;
  }
	if(prefvehicle == "") {
    inlineMsg('prefvehicle','Required Field',2);
    return false;
  }
	if(altvehicle == "") {
    inlineMsg('altvehicle','Required Field',2);
    return false;
  }
	if(reservedatemm == "") {
    inlineMsg('reservedatemm','Required Field',2);
    return false;
  }
	if(reservedatedd == "") {
    inlineMsg('reservedatedd','Required Field',2);
    return false;
  }
	if(reservedateyy == "") {
    inlineMsg('reservedateyy','Required Field',2);
    return false;
  }
	if(pickuptimehh == "") {
    inlineMsg('pickuptimehh','Required Field',2);
    return false;
  }
	if(pickuptimemm == "") {
    inlineMsg('pickuptimemm','Required Field',2);
    return false;
  }
	if(pickuptimeampm == "") {
    inlineMsg('pickuptimeampm','Required Field',2);
    return false;
  }
	if(returndatemm == "") {
    inlineMsg('returndatemm','Required Field',2);
    return false;
  }
	if(returndatedd == "") {
    inlineMsg('returndatedd','Required Field',2);
    return false;
  }
	if(returndateyy == "") {
    inlineMsg('returndateyy','Required Field',2);
    return false;
  }
  if(comments == "") {
    inlineMsg('comments','Required Field',2);
    return false;
  }	
	  if(agreed == "") {
    inlineMsg('agreed','Required Field',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 = "http://www.russaccessories.com/woohoo/images/msg_arrow.gif"; 
}