function change_tab(ele,mode) {
    var page_mode="";
    var page_name = window.location.pathname;
    var page_name = page_name.substring(page_name.lastIndexOf('/') + 1);

    if(ele=="tab1"){
        img_name='tab-left';
        if(mode=="normal" && (page_name=="homepage.html" || page_name=="")){
            page_mode="-on";
        }
    } else if(ele=="tab6"){
        img_name='tab';
        if(mode=="normal" && page_name=="sia-licensed-guards.html"){
            page_mode="-on";
        }
    } else if(ele=="tab2"){
        img_name='tab';
        if(mode=="normal" && page_name=="about-us.html"){
            page_mode="-on";
        }
    } else if(ele=="tab3"){
        img_name='tab';
        if(mode=="normal" && page_name=="contact-us.html"){
            page_mode="-on";
        }
    } else if(ele=="tab4"){
        img_name='tab';
        if(mode=="normal" && page_name=="our-services.html"){
            page_mode="-on";
        }
    } else if(ele=="tab5"){
        img_name='tab-right';
        if(mode=="normal" && page_name=="security.html"){
            page_mode="-on";
        }
    }

    if(mode=="hover"){
        document.getElementById(ele).style.backgroundImage='url(../images/' + img_name + '-hover.png)';
        document.body.style.cursor = 'pointer';
    }
    if(mode=="normal"){
        document.getElementById(ele).style.backgroundImage='url(../images/' + img_name + page_mode + '.png)';
        document.body.style.cursor = 'default';
    }
    return
}