var nbsp=160;
var node_text=3;
var emptyString=/^\s*$/
var glb_vfld;
function trim(str)
{
return str.replace(/^\s+|\s+$/g,'')
};
function setFocusDelayed()
{
glb_vfld.focus()
}
function setfocus(vfld)
{
glb_vfld=vfld;
}
function msg(fld,
msgtype,
message)
{
var dispmessage;
if(emptyString.test(message))
dispmessage=String.fromCharCode(nbsp);
else
dispmessage=message;
var elem=document.getElementById(fld);
elem.firstChild.nodeValue=dispmessage;
elem.className=msgtype;
};
var proceed=2;
function commonCheck(vfld,
ifld,
reqd)
{
if(!document.getElementById)
return true;
var elem=document.getElementById(ifld);
if(!elem.firstChild)
return true;
if(elem.firstChild.nodeType!=node_text)
return true;
if(emptyString.test(vfld.value)){
if(reqd){
msg(ifld,"error","!");
setfocus(vfld);
return false;
}
else{
msg(ifld,"ok","*");
return true;
}
}
return proceed;
}
function validatePresent(vfld,
ifld)
{
var stat=commonCheck(vfld,ifld,true);
if(stat!=proceed)return stat;
msg(ifld,"ok","*");
return true;
};
function validateEmail(vfld,
ifld,
reqd)
{
var stat=commonCheck(vfld,ifld,reqd);
if(stat!=proceed)return stat;
var tfld=trim(vfld.value);
var email=/^[^@]+@[^@.]+\.[^@]*\w\w$/
if(!email.test(tfld)){
msg(ifld,"error","ERROR: not a valid e-mail address");
setfocus(vfld);
return false;
}
var email2=/^[A-Za-z][\w.-]+@\w[\w.-]+\.[\w.-]*[A-Za-z][A-Za-z]$/
if(!email2.test(tfld))
msg(ifld,"warn","Unusual e-mail address - check if correct");
else
msg(ifld,"ok","*");
return true;
};
function validateTelnr(vfld,
ifld,
reqd)
{
var stat=commonCheck(vfld,ifld,reqd);
if(stat!=proceed)return stat;
var tfld=trim(vfld.value);
var telnr=/^\+?[0-9 ()-]+[0-9]$/
if(!telnr.test(tfld)){
msg(ifld,"error","!");
setfocus(vfld);
return false;
}
var numdigits=0;
for(var j=0;j<tfld.length;j++)
if(tfld.charAt(j)>='0'&&tfld.charAt(j)<='9')numdigits++;
if(numdigits<6){
msg(ifld,"error","!");
setfocus(vfld);
return false;
}
if(numdigits>14)
msg(ifld,"warn","*");
else{
if(numdigits<10)
msg(ifld,"warn","*");
else
msg(ifld,"ok","*");
}
return true;
};
function validateZip(vfld,
ifld,
reqd)
{
return validatePresent(vfld,ifld);
};
function validateAge(vfld,
ifld,
reqd)
{
var stat=commonCheck(vfld,ifld,reqd);
if(stat!=proceed)return stat;
var tfld=trim(vfld.value);
var ageRE=/^[0-9]{1,3}$/
if(!ageRE.test(tfld)){
msg(ifld,"error","ERROR: not a valid age");
setfocus(vfld);
return false;
}
if(tfld>=200){
msg(ifld,"error","ERROR: not a valid age");
setfocus(vfld);
return false;
}
if(tfld>110)msg(ifld,"warn","Older than 110: check correct");
else{
if(tfld<7)msg(ifld,"warn","Bit young for this, aren't you?");
else msg(ifld,"ok","*");
}
return true;
};