// JavaScript Document

function isEmailAddr(email)
{
  var result = false
  var theStr = new String(email)
  var index = theStr.indexOf("@");
  if (index > 0)
  {
    var pindex = theStr.indexOf(".",index);
    if ((pindex > index+1) && (theStr.length > pindex+1))
	result = true;
  }
  return result;
}

function validatecontactus()
{	
	if(document.getElementById("name").value=="") 
	{
		inlineMsgheader('header_msg','Name field cannot be blank! ',2);
		document.getElementById("name").focus();
		return false;
	} 
	if(document.getElementById("email").value=="") 
	{
		inlineMsgheader('header_msg1','Email field cannot be blank! ',2);
		document.getElementById("email").focus();
		return false;
	}
	
	if (!isEmailAddr(document.getElementById("email").value))
	{
		inlineMsgheader('header_msg1','Email Address format is worng! ',2);
		document.getElementById("email").focus();
		return false;
	}
	
	if(document.getElementById("comments").value=="") 
	{
		inlineMsgheader('header_msg2','Comments field cannot be blank! ',2);
		document.getElementById("comments").focus();
		return false;
	} 
	
	return true;

}


function sendRequest(fid)
{
	var oForm = document.forms[fid];
	
	if(fid==0 )
	{
		if(validatecontactus())
		{
			var sBody = getRequestBody(oForm);
			var oXmlHttp = zXmlHttp.createRequest();
			oXmlHttp.open("POST", oForm.action, true);
			oXmlHttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
			
			oXmlHttp.onreadystatechange = function () {
				if (oXmlHttp.readyState == 4) {
					if (oXmlHttp.status == 200) {
						saveResult(oXmlHttp.responseText,fid);
					} else {
						saveResult("An error occurred: " + oXmlHttp.statusText,fid);
					}
				}            
			};
			oXmlHttp.send(sBody);   
		}
	}
}
    function getRequestBody(oForm) {
            var aParams = new Array();
             for (var i=0 ; i < oForm.elements.length; i++) {
                var sParam = encodeURIComponent(oForm.elements[i].name);
                sParam += "=";
                sParam += encodeURIComponent(oForm.elements[i].value);
                aParams.push(sParam);
            } 
            return aParams.join("&");        
        }
        
        function saveResult(sMessage,fid) {
				//alert(sMessage);
					var divStatus = document.getElementById("submitknowledge");
					divStatus.innerHTML = "" + sMessage;  				
           
			}


// JavaScript Document

// START OF MESSAGE SCRIPT //

var MSGTIMER = 20;
var MSGSPEED = 5;
var MSGOFFSET = 3;
var MSGHIDE = 2;

// 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),z-index:102';
    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;
  var topnewposition = topposition - 30 ;
  var leftnewposition = leftposition - 115 ;
  msg.style.top = topnewposition + 'px';
  msg.style.left = leftnewposition + '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);
  }
}


//######################## For Header ###########################################
// build out the divs, set attributes and call the fade function //
function inlineMsgheader(target,string,autohide) {
  var msg;
  var msgcontent;
  
  if(!document.getElementById('msg12')) {
    msg = document.createElement('div');
    msg.id = 'msg12';
    msgcontent = document.createElement('div');
    msgcontent.id = 'msgcontent12';
    document.body.appendChild(msg);
    msg.appendChild(msgcontent);
    msg.style.filter = 'alpha(opacity=0),z-index:102';
    msg.style.opacity = 0;
    msg.alpha = 0;
  
  } else {

    msg = document.getElementById('msg12');
    msgcontent = document.getElementById('msgcontent12');
  }
  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;
  var topnewposition = topposition - 21 ;
  var leftnewposition = leftposition - 190 ;
  msg.style.top = topnewposition + 'px';
  msg.style.left = leftnewposition + 'px';
  clearInterval(msg.timer);
  msg.timer = setInterval("fadeMsg12(1)", MSGTIMER);
  if(!autohide) {
    autohide = MSGHIDE;  
  }
  window.setTimeout("hideMsg12()", (autohide * 1000));
}

// hide the form alert //
function hideMsg12(msg) {
  var msg = document.getElementById('msg12');
  if(!msg.timer) {
    msg.timer = setInterval("fadeMsg12(0)", MSGTIMER);
  }
}

// face the message box //
function fadeMsg12(flag) {
  if(flag == null) {
    flag = 1;
  }
  var msg = document.getElementById('msg12');
  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);
  }
}
//######################## End     ##############################################

// 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"; 
}
if(document.images) {
  arrow11 = new Image(7,80); 
  arrow11.src = "images/msg_arrow1.gif"; 
}