Why's my exitpop triggered by optin submit

Hi, I tried to put this exit pop on my WP site, but there is an entrance optin pop already there. When you try to opt in and hit submit it triggers the exit pop. Anyone know how I can fix this so it does not appear when someone tries to optin? This is the js code;
// Using \n breaks the lines and use \' for single quotes
var myMessage = '>>>WAIT! Before You Go<<< \n\n************************* \n\nClick CANCEL for\nSPECIAL OFFER ACCESS \n\n*************************';
var specialOffer = 'http://www.reikihealinghomestudy.com/trial';

function addLoadEvent(func) {
var oldonload = window.onload;
if (typeof window.onload != 'function') {
window.onload = func;
} else {
window.onload = function() {
if (oldonload) {
oldonload();
}
func();
}
}
}
function addClickEvent(a, i, func) {
if (typeof a[i].onclick != 'function') {
a[i].onclick = func;
}
}
var theDiv = '<div style="display:block; width:100%; height:100%; position:absolute; background:#FFFFFF; margin-top:0px; margin-left:0px;" align="center">';
theDiv = theDiv + '<iframe src="' + specialOffer + '" width="100%" height="100%" align="middle" frameborder="0"></iframe>';
theDiv = theDiv + '</div>';
theBody = document.body;
if (!theBody) {
theBody = document.getElementById("body");
if (!theBody) {
theBody = document.getElementsByTagName("body")[0];
}
}
var StopExit = false;
function UnPopIt() { };
function DisplayPop() {
if (StopExit == false) {
window.scrollTo(0, 0);
StopExit = true;
window.onbeforeunload = UnPopIt;
divtag = document.createElement("div");
divtag.style.position = "absolute";
divtag.style.width = "100%";
divtag.style.height = "100%";
divtag.style.zIndex = "99";
divtag.style.left = "0px";
divtag.style.top = "0px";
divtag.innerHTML = theDiv;
theBody.innerHTML = "";
theBody.topMargin = "0px";
theBody.rightMargin = "0px";
theBody.bottomMargin = "0px";
theBody.leftMargin = "0px";
theBody.style.overflow = "hidden";
theBody.appendChild(divtag);
return myMessage;
}
}
var a = document.getElementsByTagName('A');
for (var i = 0; i < a.length; i++) {
if (a[i].target !== '_blank') {
addClickEvent(a, i,
function() {
StopExit = true;
});
} else {
addClickEvent(a, i,
function() {
StopExit = false;
});
}
}
disablelinksfunc = function() {
var a = document.getElementsByTagName('A');
for (var i = 0; i < a.length; i++) {
if (a[i].target !== '_blank') {
addClickEvent(a, i,
function() {
StopExit = true;
});
} else {
addClickEvent(a, i,
function() {
StopExit = false;
});
}
}
}
addLoadEvent(disablelinksfunc);
disableformsfunc = function() {
var f = document.getElementsByTagName('FORM');
for (var i = 0; i < f.length; i++) {
if (!f[i].onclick) {
f[i].onclick = function() {
StopExit = true;
}
} else if (!f[i].onsubmit) {
f[i].onsubmit = function() {
StopExit = true;
}
}
}
}
addLoadEvent(disableformsfunc);
window.onbeforeunload = DisplayPop;