function DoPreloader(container,text, cl)
 {
     $("#"+container).html('<span class="'+cl+'"><img src="/img/preloader_small.gif" alt="Выполнение операции"/>&nbsp;'+text+'</span>');
 }
 function getSelectedText() {
    if (window.getSelection) {
        return window.getSelection();
    }
    else if (document.selection) {
        return document.selection.createRange().text;
    }
    return '';
}

 function nl2br (str) {

var breakTag = '';

breakTag = '<br />';
return (str + '').replace(/([^>]?)\n/g, '$1'+ breakTag +'\n');
}
function showAlertMessage(container, message)
{
    $('#'+container).html(message);
}
function trim(string)
{
return string.replace(/(^\s+)|(\s+$)/g, "");
}