function checkemail(email)
{
   var rec = /\b(^(\S+@).+((\.com)|(\.net)|(\.org)|(\.info)|(\.edu)|(\.mil)|(\.gov)|(\.biz)|(\.ws)|(\.us)|(\.tv)|(\.cc)|(\..{2,2}))$)\b/;
   return  rec.test(email);
}

function check_contact_form()
{
    var email = $('contact[email]').value;
    if(!checkemail(email))
    {    
        alert('please type correct email address!like eu@eu.com');
        return false; 
    }
    var form = $('form');
    var alltextinput = form.getInputs('text');

    for(i=0;i< alltextinput.length;i++)
    {   
        if(alltextinput[i].value == "")
        {
            alert('Please fill all blank infos!');
            return false;
        }

    }
}