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;
setTimeout('setFocusDelayed()',100);
}
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","Required!");
setfocus(vfld);
return false;
}else{
msg(ifld,"warn","");
return true;
}
}
return proceed;
}
function validatePresent(vfld,ifld){
var stat=commonCheck(vfld,ifld,true);
if(stat!=proceed){return stat;}
msg(ifld,"warn","");
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$/;
if(!email.test(tfld)){
msg(ifld,"error","must be valid");
setfocus(vfld);
return false;
}
var email2=/^[A-Za-z][\w.-]+@\w[\w.-]+\.[\w.-]*[A-Za-z][A-Za-z]$/;
if(!email2.test(tfld)){
msg(ifld,"warn","unusual - check");
}else{
msg(ifld,"warn","");
return true;}
};