// JScript File
function BodyLoad() {
    HideDiv("divSendError");
    // set focus to input box
    document.Form1.txtEmail.focus();
}

function SendEmail(emailtext,subjecttext,messagetext) {
	var doSend = true;
	if (verifyEmail(emailtext) == false)
	{
		ShowDiv("divSendError");
		ClearError();
		var newdiv=document.createElement("div");
		var newtext=document.createTextNode("Please enter a valid e-mail address.");
		newdiv.appendChild(newtext);
		document.getElementById("divSendError").appendChild(newdiv);
		alert("Please enter a valid e-mail address.");
		return; 
	}
	if (emailtext.length == 0 || subjecttext.length == 0 || messagetext.length == 0)
	{
		doSend = false;
	}
	
	if (doSend == true)
	{
		HideDiv("divSendError");
		Anthem_InvokePageMethod('SendEmail',[emailtext,subjecttext,messagetext], EmailResults);
	}
	else
	{
		ShowDiv("divSendError");
		ClearError();
		var newdiv=document.createElement("div");
		var newtext=document.createTextNode("Please fill out all form fields before sending.");
		newdiv.appendChild(newtext);
		document.getElementById("divSendError").appendChild(newdiv);
		alert("Please fill out all form fields before sending.");
	}
}

function EmailResults(sentresponse) {
    //Hide form and display bottom placeholder
    if (sentresponse.value == "False")
    {
		ShowDiv("divSendError");
		ClearError();
		var newdiv=document.createElement("div");
		var newtext=document.createTextNode("An error occurred while sending your message. Please try resending your message or contact the webmaster.");
		newdiv.appendChild(newtext);
		document.getElementById("divSendError").appendChild(newdiv);
		alert("An error occurred while sending your message. \nPlease try resending your message or contact the webmaster.");
    }
    else
    {
		ClearError();
		HideDiv("divEmailForm");
		ShowDiv("divEmailSent");
		var newdiv=document.createElement("div");
		var newtext=document.createTextNode(sentresponse.value);
		newdiv.appendChild(newtext);
		document.getElementById("divEmailSent").appendChild(newdiv);
		alert(sentresponse.value);
    }    
}

function verifyEmail(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   //alert("Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   //alert("Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    //alert("Invalid E-mail ID")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    //alert("Invalid E-mail ID")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    //alert("Invalid E-mail ID")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    //alert("Invalid E-mail ID")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    //alert("Invalid E-mail ID")
		    return false
		 }

 		 return true
	}
 
function ShowDiv(divId) {
    if (document.layers)
    {
        document.layers[divId].visibility = "show";
    }
    else
    {
        document.getElementById(divId).style.visibility = "visible";
    }
}

function HideDiv(divId) {
    if (document.layers)
    {
        document.layers[divId].visibility = "hide";
    }
    else
    {
        document.getElementById(divId).style.visibility = "hidden";
    }
}

function ClearError() {
	//clears error text
    var errordiv = document.getElementById("divSendError");
    var counter = errordiv.childNodes.length;
    
    for (var i = counter-1; i >= 0; i--)
    {
        errordiv.removeChild(errordiv.childNodes[i]);
    }   
}

function ClearForm() {
    document.getElementById("txtbEmail").value = '';
    document.getElementById("txtbSubject").value = '';
    document.getElementById("txtbMessage").value = '';
    ClearError();
    HideDiv("divSendError")
    return;
}