function createCookie(name,value,days) {

	if (days) {

		var date = new Date();

		date.setTime(date.getTime()+(days*24*60*60*1000));

		var expires = "; expires="+date.toGMTString();

	}

	else var expires = "";

	document.cookie = name+"="+value+expires+"; path=/";

}



function readCookie(name) {

	var nameEQ = name + "=";

	var ca = document.cookie.split(';');

	for(var i=0;i < ca.length;i++) {

		var c = ca[i];

		while (c.charAt(0)==' ') c = c.substring(1,c.length);

		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);

	}

	return "no";

}



function eraseCookie(name) {

	createCookie(name,"",-1);

}





function chk(){

	if(readCookie('newsletter')=="no"){

	// if cookie is not set

	var vr=document.form2;

	i=vr.email.value.indexOf('@');

	j=vr.email.value.indexOf('.');

	if(i == -1 && j == -1){

	alert("Please Enter a Valid Email");

	return false;

	} else

	if(vr.val.value==""){

	 alert("Please Enter the code shown ");

	 return false;

	 }else

	 if(vr.val.value!=vr.checkval.value){

	 alert("Please Enter the code shown ");

	 return false;

	 }else

	 if(vr.val.value==vr.checkval.value){

	 	// set cookie name newsletter

		createCookie('newsletter','yes',1);

		return true;

	 }

	 }

	 else{

	 	// if cookie exists

		return false;

	}

	 

	

}