// requestexpert validation function //
function validate(requestexpert) {
  var yourname = requestexpert.yourname.value;
  var youremail = requestexpert.youremail.value;
  var mobileno = requestexpert.mobileno.value;
  if(document.getElementById('selectcar')){
  	var selectcar = requestexpert.selectcar.value; 
  }
  //Feedback 
  if(document.getElementById('intrested')){
  	var intrested = requestexpert.intrested.value; 
  }
  var timing = requestexpert.timing.value;
  var admessage2 = requestexpert.admessage2.value;
  
  var nameRegex = /^[a-zA-Z]+(([\'\,\.\- ][a-zA-Z ])?[a-zA-Z]*)*$/;
  var emailRegex = /^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$/;
  var mobilenoRegex = /^([7-9]{1})([0-9]{9})$/;
  var messageRegex = new RegExp(/<\/?\w+((\s+\w+(\s*=\s*(?:".*?"|'.*?'|[^'">\s]+))?)+\s*|\s*)\/?>/gim);
  
  if(yourname == "Your Name") {
	inlineMsg('yourname','Please enter your name.',2);
    return false;
  }
  else if(!yourname.match(nameRegex)) {
    inlineMsg('yourname','You have entered an invalid name.',2);
    return false;
  }

  if(youremail == "Your Email") {
    inlineMsg('youremail','Please enter your email.',2);
    return false;
  }
  else if(!youremail.match(emailRegex)) {
    inlineMsg('youremail','You have entered an invalid email.',2);
    return false;
  }
  
  if(mobileno == "Your Mobile No.") {
    inlineMsg('mobileno','Please your mobile no.',2);
    return false;
  }
  else if(!mobileno.match(mobilenoRegex)) {
    inlineMsg('mobileno','You have entered an invalid mobile no.',2);
    return false;
  }
  
  if(selectcar == "Select Car") {
	inlineMsg('selectcar','Select your car.',2);
    return false;
  }
  
  if(intrested == "Select Car") {
	inlineMsg('intrested','Select your car.',2);
    return false;
  }
  
  if(timing == "Preferred Date & Time") {
	inlineMsg('timing','Select your timing.',2);
    return false;
  }
  
  if(admessage2 == "Add Message") {
    inlineMsg('admessage2','You must enter a message.');
    return false;
  }
  else if(admessage2 == "You must enter a message.") {
    inlineMsg('admessage2','You must enter a message.');
    return false;
  }
  else if(admessage2 == "You have entered an invalid message.") {
    inlineMsg('admessage2','You must enter a message.');
    return false;
  }
  else if(admessage2.match(messageRegex)) {
    inlineMsg('admessage2','You have entered an invalid message.');
    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 errmsg;
  var msgcontent;
  if(!document.getElementById('errmsg')) {
    errmsg = document.createElement('div');
    errmsg.id = 'errmsg';
    msgcontent = document.createElement('div');
    msgcontent.id = 'msgcontent';
    document.body.appendChild(errmsg);
    errmsg.appendChild(msgcontent);
    errmsg.style.filter = 'alpha(opacity=0)';
    errmsg.style.opacity = 0;
    errmsg.alpha = 0;
  } 
  else {
    errmsg = document.getElementById('errmsg');
    msgcontent = document.getElementById('msgcontent');
  }
  
  msgcontent.innerHTML = string;
  errmsg.style.display = 'none';
  
  var msgheight = errmsg.offsetHeight;
  var targetdiv = document.getElementById(target);
  
  alert(string);
  targetdiv.focus();
  
  //targetdiv.className += " error-msg";
  //targetdiv.value = string;
  //targetdiv.style.color = "red";    
  //targetdiv.style.cursor = 'wait';
  /*var targetheight = targetdiv.offsetHeight;
  var targetwidth = targetdiv.offsetWidth;
  var topposition = topPosition(targetdiv) - ((msgheight - targetheight) / 2);
  var leftposition = leftPosition(targetdiv) + targetwidth + MSGOFFSET;
  errmsg.style.top = topposition + 'px';
  errmsg.style.left = leftposition + 'px';*/
  
  clearInterval(errmsg.timer);
  errmsg.timer = setInterval("fadeMsg(1)", MSGTIMER);
  if(!autohide) {
    autohide = MSGHIDE;  
  }
  window.setTimeout("hideMsg()", (autohide * 1000));
}

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

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