var selectedString = "";

function getSelectedHTML() {
    selectedString = "";
    var rng = undefined;
    if (window.getSelection) {
        selobj = window.getSelection();
        if (!selobj.isCollapsed) {
            if (selobj.getRangeAt) {
                rng = selobj.getRangeAt(0);
            }
            else {
                rng = document.createRange();
                rng.setStart(selobj.anchorNode, selobj.anchorOffset);
                rng.setEnd(selobj.focusNode, selobj.focusOffset);
            }
            if (rng) {
                DOM = rng.cloneContents();
                object = document.createElement('div');
                object.appendChild(DOM.cloneNode(true));
                selectedString = object.innerHTML;
            }
            else {
                selectedString = selobj;
            }
        }
    }
    else if (document.selection) {
        selobj = document.selection;
        rng = selobj.createRange();
        if (rng && rng.htmlText) {
            selectedString = rng.htmlText;
        }
        else if (rng && rng.text) {
            selectedString = rng.text;
        }
    }
    else if (document.getSelection) {
        selectedString = document.getSelection();
    }
    selectedString = cleanSelectedString(selectedString);
}

function copySelection() {
    setTimeout("getSelectedHTML()", 50);
}

document.onmouseup = copySelection;
document.onkeyup = copySelection;

function cleanSelectedString(theString) {
    var comments = theString.match(/<!--/gi);
    var temp = "";
    if (comments != undefined) {
        for (i = 0; i < comments.length; i++) {
            var temp = theString.substring(theString.search(/<!--/gi), theString.search(/-->/gi) + 3);
            theString = theString.replace(temp, "");
        }
    }
    var regexp = /(<\/?[A-Z]+[0-9]?)\s?[^>]*>/gi
    theString = theString.replace(regexp, "$1>");
    var regexp2 = /<\/?[A-Z]+[0-9]?\s?>/gi
    theString = theString.replace(regexp2, function(m) { return returnTags(m); });
    var regexp_spaces = /\s+?\s*/gi
    theString = theString.replace(regexp_spaces, " ");
    var regexp_br = /(<br>)+?\s?(<br>\s*)*/gi
    theString = theString.replace(regexp_br, "<br>");
    return theString;
}

function returnTags(thematch) {
    var regtag = /<\/?(h[1-6]|a|area|ul|ol|dl|dd|dt|li|table|td|tr|th|p|hr|br)>/i
    if (regtag.test(thematch)) {
        return thematch;
    }
    else {
        return "";
    }
}