//全选

function CheckAll(ca, rd)
{
    var AllElement = document.getElementsByTagName("input");
    for(i = 0; i < AllElement.length; i++)
    {
        if(AllElement[i].id == rd && AllElement[i].type == "checkbox")
        {
            AllElement[i].checked = ca.checked;
        }
    }
}

//判断是否为空
function trim(s)
{
	var m = s.match(/^\s*(\S+(\s+\S+)*)\s*$/);
	return (m == null) ? "" : m[1];
}

//打开对话框
function openWindow(url,w,h)
{
	window.open(url,"NewWindow", "width="+w+",height="+h+",toolbar=no,status=no,menubar=no,scrollbars=no,resizable=no");
}