document.onkeydown = keyDown;
function keyDown(e)
{
    var e=(typeof event!="undefined")?window.event:e;   // IE : Firefox
    var s=(document.getSelection)?document.getSelection():document.selection.createRange().text;
    if(e.ctrlKey && e.keyCode==13){
        if (s!="") 
        {
            window.open("http://www.gpc.com.cn/site/report/default.htm","","width=400,height=300");
        }else{
            alert("请先用鼠标选择出错的内容片断！");
            return false;
        }
    }
}