I am new to JavaScript.

The following counts the number of page loads and then does something if < MIN_PAGE_VIEWS

Can anyone give me any pointers to improve both this function and my JavaScript in general? Both in terms of patterns, design and algorithm?

// Call on body onload event.
// Checks to see if prompt is to be displayed and if banner is to be displayed.
function bodyOnLoad() { 
    
    var MIN_PAGE_VIEWS = 3;
    
    if(readCookie('counter-cookie') == null){   
        createCookie('counter-cookie', '0', '150');
    }
    
    // Only start showing random popup after second page visit
    if (readCookie('counter-cookie') < MIN_PAGE_VIEWS) { 
    
        var iCount = parseInt(readCookie('counter-cookie'));
        iCount++;
        createCookie('counter-cookie',iCount.toString(), '150');
    } 
    else{
        if (readCookie('ab5cd57e-871a-4b65') != 'yes') { 
            showPanel('popupPanel',80,240,'yes'); 
        }
    } 
    
    if(readCookie('banner-cookie') == 'yes'){
        showPanel('surveyBanner',100,100, 'no'); 
        displayBanner();
    }
}

// New Cookie and Set expiration date
function createCookie(name,value,days) {
    if (days) {
        var date = new Date();
        date.setTime(date.getTime()+(days*24*60*60*1000));
        var expires = "; expires="+date.toGMTString();
    }
    else var expires = "";
    document.cookie = name+"="+value+expires+"; path=/";
}

// Separates cookies
function readCookie(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for(var i=0;i < ca.length;i++) {
        var c = ca[i];
        while (c.charAt(0)==' ') c = c.substring(1,c.length);
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
}
    
    return null;
}

Thanks,

The following counts the number of page loads and then does something if < MIN_PAGE_VIEWS.

Can anyone give me any pointers to improve both this function and my JavaScript in general? Both in terms of patterns, design and algorithm.

// Call on body onload event.
// Checks to see if prompt is to be displayed and if banner is to be displayed.
function bodyOnLoad() { 
    
    var MIN_PAGE_VIEWS = 3;
    
    if(readCookie('counter-cookie') == null){   
        createCookie('counter-cookie', '0', '150');
    }
    
    // Only start showing random popup after second page visit
    if (readCookie('counter-cookie') < MIN_PAGE_VIEWS) { 
    
        var iCount = parseInt(readCookie('counter-cookie'));
        iCount++;
        createCookie('counter-cookie',iCount.toString(), '150');
    } 
    else{
        if (readCookie('ab5cd57e-871a-4b65') != 'yes') { 
            showPanel('popupPanel',80,240,'yes'); 
        }
    } 
    
    if(readCookie('banner-cookie') == 'yes'){
        showPanel('surveyBanner',100,100, 'no'); 
        displayBanner();
    }
}

// New Cookie and Set expiration date
function createCookie(name,value,days) {
    if (days) {
        var date = new Date();
        date.setTime(date.getTime()+(days*24*60*60*1000));
        var expires = "; expires="+date.toGMTString();
    }
    else var expires = "";
    document.cookie = name+"="+value+expires+"; path=/";
}

// Separates cookies
function readCookie(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for(var i=0;i < ca.length;i++) {
        var c = ca[i];
        while (c.charAt(0)==' ') c = c.substring(1,c.length);
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
    }
    
    return null;
}