function CHKContact(f)
{if(f.name.value==""){alert("Please enter your name.");f.name.focus();return false;}
if(f.coname.value==""){alert("Please enter your company name.");f.coname.focus();return false;}
if(f.email.value=="" || f.email.value.search("@") == -1 || f.email.value.search("[.*]") == -1)
{alert("Please enter valid email address.");f.email.focus();return false;}
if(f.tel.value==""){alert("Please enter your phone number.");f.tel.focus();return false;}
if(f.msg.value==""){alert("Please enter your message before post.");f.msg.focus();return false;}
return true;}

/*function CHKOrder(f){
if(f.name.value=="")
{alert("Please enter your name.");f.name.focus();return false;}
if(f.email.value=="" || f.email.value.search("@") == -1 || f.email.value.search("[.*]") == -1)
{alert("Please enter your valid email address.");f.email.focus();return false;}
if(f.tel.value=="")
{alert("Please enter your telephone number.");f.tel.focus();return false;}
if(f.address.value=="")
{alert("Please enter your postal address.");f.address.focus();return false;}
if(f.qty.value=="" || f.qty.value=="0")
{alert("Please give quantity at least 1 (one).");f.qty.focus();return false;}
return true;
}*/

function popwin(f,w,h)
{var i=0;window.open(f,"new"+i+"","width="+w+" height="+h+" top=10 left=10 status");i++;}

function momo()
{if (event.keyCode < 45 || event.keyCode > 57) event.returnValue = false;}