At lave en udklipsholder?

Satte min egen løsning sammen :-)

function controlClipboard(clipItem)
{
    var found;
    var clipboard = document.getElementById("clipboard");
    var mySplitResult = clipboard.value.split(",");
   
    for(i = 0; i < mySplitResult.length; i++)
    {
        if (mySplitResult[i] == clipItem)
        {
            //alert("Dette element eksisterer allerede!" + i)
            var found = true;
        }
    }
   
    if (found != true)
    {
        clipboard.value += clipItem + ","}
    else {
        return removeClipboardItem(clipItem)
    }                               
}

function removeClipboardItem(clipItem)
{
    var clipboard = document.getElementById("clipboard").value;
    var thisClipItem = clipItem + ","
    var newContent = clipboard.replace(thisClipItem,"");
   
    document.getElementById("clipboard").value = newContent;
}