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=/";} 

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);}

function focus(el){try{el.focus(); window.scrollBy(0,-35);} catch (e) {}}

function trim(s, p){if(typeof s!='string')return s; return s.replace(p ? p : /^\s*|\s*$/g, '');}
function stripTags(str){return str.replace(/(<([^>]*)>)/g, '');}