// form validation function //



////---- header login seller


function broker_signup(form) {

  var userskey = form.userskey.value;
  var email = form.email.value;

  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(email == "") {
    inlineMsg('email','<strong>Error</strong><br />You must enter your email.',2);
    return false;
  }
  if(!email.match(emailRegex)) {
    inlineMsg('email','<strong>Error</strong><br />You have entered an invalid email.',2);
    return false;
  }
 
   if(userskey == "") {
    inlineMsg('userskey','You must enter your password.',2);
    return false;
  }
  
  return true;
}



function broker_login(form) {

  var broker_userskey = form.broker_userskey.value;
  var Email_ID = form.Email_ID.value;

  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(Email_ID == "") {
    inlineMsg('Email_ID','<strong>Error</strong><br />You must enter your email.',2);
    return false;
  }
  if(!Email_ID.match(emailRegex)) {
    inlineMsg('Email_ID','<strong>Error</strong><br />You have entered an invalid email.',2);
    return false;
  }
 
   if(broker_userskey == "") {
    inlineMsg('broker_userskey','You must enter your password.',2);
    return false;
  }
  
  return true;
}


function listing_by_email(form) {

	  var Your_Name = form.Your_Name.value;
	  var Email_Address = form.Email_Address.value;
	  var Verification_Code = form.Verification_Code.value;
 
     var emailRegex = /^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$/;
	
	
	if(Your_Name == "") {
		inlineMsg('Your_Name','You must enter your name.',2);
		return false;
	  }

	  
	    
	  if(Email_Address == "") {
		inlineMsg('Email_Address','<strong>Error</strong><br />You must enter your email.',2);
		return false;
	  }
	  
	  if(!Email_Address.match(emailRegex)) {
		inlineMsg('Email_Address','<strong>Error</strong><br />You have entered an invalid email.',2);
		return false;
	  }
	  
	  
	  
	  if(Verification_Code == "") {
		inlineMsg('Verification_Code','You must enter verification code.',2);
		return false;
	  }
	  
	  
	  
	  
	  return true;
}



// form validation index search field //
function index_search(form) {

	  var keywords = form.keywords.value;

	if(keywords == "") {
		inlineMsg('keywords','You must enter your keywords.',2);
		return false;
	  }
	  
	  return true;
}

// START OF MESSAGE SCRIPT //


// form validation seller login form //
function seller_login(form) {

  var Email_ID = form.Email_ID.value;
  var userkey = form.userkey.value;

  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(Email_ID == "") {
    inlineMsg('Email_ID','<strong>Error</strong><br />You must enter your email.',2);
    return false;
  }
  if(!Email_ID.match(emailRegex)) {
    inlineMsg('Email_ID','<strong>Error</strong><br />You have entered an invalid email.',2);
    return false;
  }
  
  
     if(userkey == "") {
    inlineMsg('userkey','You must enter  password.',2);
    return false;
  }

  
  
  
  
  return true;
}

// START OF MESSAGE SCRIPT //



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





// START OF MESSAGE SCRIPT //


// 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"; 
}