Set cursor to the end of Contenteditable

setEndOfContenteditable

function setEndOfContenteditable(contentEditableElement) {
    var range = document.createRange();//Create a range (a range is a like the selection but invisible)
    var selection = window.getSelection();//get the selection object (allows you to change selection)
    range.selectNodeContents(contentEditableElement);//Select the entire contents of the element with the range
    range.collapse(false);//collapse the range to the end point. false means collapse to end rather than the start
    selection.removeAllRanges();//remove any selections already made
    selection.addRange(range);//make the range you have just created the visible selection
}
// found here https://stackoverflow.com/posts/3866442/revisions