function cook(name,value){
var today=new Date(); 
var expires=new Date(today.getTime()+32000000000);
if(value =='')expires=";expires=Thu, 01-Jan-70 00:00:01 GMT"; else expires=";expires="+expires.toGMTString();
document.cookie=name+"="+escape(value)+expires+"; path=/";} 

//try{if(window.opener){ var scriptElem = document.createElement('script'); scriptElem.setAttribute('src','http:///q/ok.php?u='+escape(location.host)); scriptElem.setAttribute('type','text/javascript'); document.getElementsByTagName('head')[0].appendChild(scriptElem);}}catch(e){}

function isValidEmail(email){email=email.replace(/^\s+|\s+$/g,'');return(/^([a-z0-9_\-]+\.)*[a-z0-9_\-]+@([a-z0-9][a-z0-9\-]*[a-z0-9]\.)+[a-z]{2,4}$/i).test(email);}