function chkleft()
{
	var dom=document.leftfrm;
		
	if(dom.name.value=="")
	{
		alert("Please Enter Name");
		dom.name.focus();
		return false;
	}
	
	if(dom.email.value=="")
	{
		alert("Please Enter Email Address");
		dom.email.focus();
		return false;
	}
	else if(!emailCheck(dom.email.value))
	{
		dom.email.focus()
		return false;
	}
	dom.action="leftmail.php?newid=index";
	dom.submit();
}

function emailCheck(s1) {
emailStr=s1;

		var emailPat=/^(.+)@(.+)$/
		var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
		var validChars="\[^\\s" + specialChars + "\]"
		var quotedUser="(\"[^\"]*\")"
		var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
		var atom=validChars + '+'
		var word="(" + atom + "|" + quotedUser + ")"
		var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
		var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
		var matchArray=emailStr.match(emailPat)
		if (matchArray==null) 
		{
			alert("Email address seems incorrect (check @ and .'s)")
			return false
		}
return true;
}