Копирование содержимого тега code в буфер обмена

function smfCopySelection(codeElement)
{
	// create an element to contain our copying flash element
	if(!document.getElementById('clipboard')) {
		var copydiv = document.createElement('div');
		copydiv.id = 'clipboard';
		document.body.appendChild(copydiv);
	}
	// clear our element ready for new stuff to copy
	document.getElementById('clipboard').innerHTML = '';
	smfSelectText(codeElement);
	// input = the stuff in the code tag
	var input = window.getSelection();
	// replace active line breaks with carriage returns
	input = input.replace(/<(BR\/|br\/|BR \/|br \/|br|BR)>/g, '\r\n');
	// remove active html (part of smf)
	input = input.replace(/<\/?[^>]+(>|$)/g, '');
	// now decode our content  (which maybe html itself) (added by the user)
	var output = input.replace(/&lt;/g,"<").replace(/&gt;/g,">").replace(/ /g," ").replace(/&amp;/g, '&').replace(/&quot;/g, '"');
	// using a flash file to copy to clipboard
	document.getElementById('clipboard').innerHTML = '<embed src="clipboard.swf" FlashVars="clipboard='+encodeURIComponent(output)+'" width="0" height="0" type="application/x-shockwave-flash"></embed>';
}

<a href="javascript:void(0);" onclick="smfCopySelection(this);" class="codeoperation">Копировать</a>

function smfCopyText(codeElement)
{
    // create an element to contain our copying flash element
    if(!document.getElementById('clipboard')) {
        var copydiv = document.createElement('div');
        copydiv.id = 'clipboard';
        document.body.appendChild(copydiv);
    }
    
    // clear our element ready for new stuff to copy
    document.getElementById('clipboard').innerHTML = '';
    
    // Select element content
    smfSelectText(codeElement);
    
    // input = the stuff in the code tag
    var input;
    
    if (document.selection)
	{
		// IE
		input = document.selection.createRange().text;;
	}
	else if (document.getSelection)
	{
		// Opera(?)
		input = document.getSelection();
	}
	else if (window.getSelection)
	{
		// FIREFOX & OTHERS
		input = window.getSelection();
	}
	
    // replace active line breaks with carriage returns
    input = input.replace(/<(BR\/|br\/|BR \/|br \/|br|BR)>/g, '\r\n');
    
    // remove active html (part of smf)
    input = input.replace(/<\/?[^>]+(>|$)/g, '');
    
    // now decode our content  (which maybe html itself) (added by the user)
    var output = input.replace(/&lt;/g,"<").replace(/&gt;/g,">").replace(/ /g," ").replace(/&amp;/g, '&').replace(/&quot;/g, '"');
    
    // using a flash file to copy to clipboard
    document.getElementById('clipboard').innerHTML = '<embed src="clipboard.swf" FlashVars="clipboard='+encodeURIComponent(output)+'" width="0" height="0" type="application/x-shockwave-flash"></embed>';
    
    // Remove any selection
    smfDeselectAll();
}