<!-- Begin to hide script contents from old browsers.
function isMail(email)
{
var str="\",\'<>?+=\\|()/^%*&$#!`~"
var bol
bol=true
if (email.length<5 || email.indexOf('@')<1 || email.indexOf('@')!=email.lastIndexOf('@')||email.indexOf('..')>=0||email.indexOf('.@')>=0||email.indexOf('@.')>=0||email.lastIndexOf('.')==email.length-1||email.indexOf('@')==email.length-1||email.indexOf('.')<=0||email.lastIndexOf('.')<email.indexOf('@'))
	{
	return false
	}
for(i=0;i<str.length;i++)
	{
	if (email.indexOf(str.substring(i,i+1))>=0)
		{
		bol=false
		break
		}
	}
return bol
}
// End the hiding here. -->