JSFiddle - React, Tailwind, and code Playground

HTML

<input type="submit" onclick="myPostBack()" name="ctl00$ctl00$ctl00$BodyPlaceHolder$BodyPlaceHolder$WizardContentPlaceHolder$WizardCollectBasicSMEInfo$trackingButton" value="Get your quick quote" id="trackingButton" class="button" />

JavaScript

var Page_IsValid = true;

function myPostBack() {
/*
    WebForm_DoPostBackWithOptions(new WebForm_PostBackOptions("ctl00$ctl00$ctl00$BodyPlaceHolder$BodyPlaceHolder$WizardContentPlaceHolder$WizardCollectBasicSMEInfo$trackingButton", "", true, "Form", "", false, false))
*/
    alert("postback executed")
}
        
function fireFloodlight() {
    if (Page_IsValid) {
        var axel = Math.random() + "";
        var a = axel * 10000000000000;
        $("body").append('<img src="https://ad.doubleclick.net/activity;src=2499215;type=axa_l124;cat=lpg_g263;ord=' + a + '?" width="1" height="1" alt=""/>');
        //eval(origOnClick);
        // append another for verification
        $("body").append('<img src="http://www.devaldi.com/wp-content/uploads/2009/10/jquery-logo.gif" alt="jquery" />')
    }
}



$(function() {
    $('#trackingButton').on("click", function() {
        fireFloodlight();
    });
});