/**
* @author Falchenko Maxim aka be3
* @plugin_page http://tops.net.ua/jquery_addtocopy/
* @desc Adds a link to the copied text
* @version 1.2
* @example
* $("#content").addtocopy();
* @license free
**/
jQuery.fn.addtocopy = function (usercopytxt) {
    var options = { htmlcopytxt: '<br>More: <a href="' + window.location.href + '">' + window.location.href + '</a><br>', minlen: 25, addcopyfirst: false }
    var doAddCopy=true;
    $.extend(options, usercopytxt);
    var copy_sp = document.createElement('span');
    copy_sp.id = 'ctrlcopy';
    copy_sp.innerHTML = options.htmlcopytxt;
    return this.each(function () {
        $(this).mousedown(function () { $('#ctrlcopy').remove(); doAddCopy=true});
        $(this).mouseup(function () {
            if (window.getSelection) {		 //good times 
                var slcted = window.getSelection();
                var seltxt = slcted.toString();
                if (!seltxt || seltxt.length < options.minlen) return;
                var nslct = slcted.getRangeAt(0);
                seltxt = nslct.cloneRange();
                seltxt.collapse(options.addcopyfirst);
                seltxt.insertNode(copy_sp);
                if (!options.addcopyfirst) nslct.setEndAfter(copy_sp);
                slcted.removeAllRanges();
                slcted.addRange(nslct);
            } else if (document.selection) {		 //bad times
                var slcted = document.selection;
                var nslct = slcted.createRange();
                var seltxt = nslct.text;
//alert(seltxt);
                if (!seltxt || seltxt.length < options.minlen) return;
//alert(doAddCopy);
				if (doAddCopy)
				{
				doAddCopy=false;
	               seltxt = nslct.duplicate();
     	          seltxt.collapse(options.addcopyfirst);
          	     seltxt.pasteHTML(copy_sp.outerHTML);
              		  if (!options.addcopyfirst)
					{
						nslct.setEndPoint("EndToEnd", seltxt);
						nslct.select(); 
					}
				}
            }
        });
    });
}