function checkform_add()
{


if (form1.urlname.value.replace(/\s/g,"")=="")
{
alert ("请输入名称!")
    form1.urlname.focus();
return false;
}

if (form1.url.value.replace(/\s/g,"")=="")
{
alert ("请输入网址!")
    form1.url.focus();
return false;
}

if (form1.info.value.replace(/\s/g,"")=="")
{
alert ("请输入简介!")
    form1.info.focus();
return false;
}


}