Difference between revisions of "Template:HKJS S/Javascript/Notebook"

Line 29: Line 29:
 
document.getElementById(a).innerHTML = "[Show]";
 
document.getElementById(a).innerHTML = "[Show]";
 
}
 
}
 +
}
 +
window.onscroll = function() {scrollFunction()};
 +
 +
function scrollFunction() {
 +
    if (document.body.scrollTop > 20 || document.documentElement.scrollTop > 20) {
 +
        document.getElementById("top_btn").style.display = "block";
 +
    } else {
 +
        document.getElementById("top_btn").style.display = "none";
 +
    }
 
}
 
}

Revision as of 08:30, 28 September 2018

function expandall(){ var value = ["229"]; var i; for (i = 0; i < value.length; i++){ var a = value[i]; document.getElementById(a).style.display = "block"; var b = a + "_btn"; document.getElementById(b).innerHTML = "[Hide]"; } } function collapseall(){ var value = ["229"]; var i; for (i = 0; i < value.length; i++){ var a = value[i]; document.getElementById(a).style.display = "none"; var b = a + "_btn"; document.getElementById(b).innerHTML = "[Show]"; } } function expand(value){ var a = value + "_btn"; var btn = document.getElementById(a) if(btn.innerHTML == "[Show]"){ document.getElementById(value).style.display = "block"; document.getElementById(a).innerHTML = "[Hide]"; }else{ document.getElementById(value).style.display = "none"; document.getElementById(a).innerHTML = "[Show]"; } } window.onscroll = function() {scrollFunction()};

function scrollFunction() { 

   if (document.body.scrollTop > 20 || document.documentElement.scrollTop > 20) {
       document.getElementById("top_btn").style.display = "block";
   } else {
       document.getElementById("top_btn").style.display = "none";
   }

}