// JavaScript Document

var rewardCode = "";
var cookieRewardCode = "";
var NSMRegURL = "https://home.nutshellmath.com/homeworkhelp/signup/signup1.aspx"

function URLParamVal( paramName ) {
	var paramValue = "";
	paramName = paramName.toUpperCase().replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  	var regexS = "[\\?&]"+paramName.toUpperCase()+"=([^&#]*)";
  	var regex = new RegExp( regexS );
  	var results = regex.exec( window.location.href.toUpperCase() );
  	if( results == null ){
    	paramValue =  "";
	}
  	else{
    	paramValue = results[1];
	}
	return paramValue;
}

function setCookie(c_name,value,expiredays){
	var exdate=new Date();
	exdate.setDate(exdate.getDate()+expiredays);
	document.cookie= c_name+ "=" +escape(value)+((expiredays==null) ? "" : ";expires="+exdate.toGMTString());
}

function getCookie(c_name){
	if (document.cookie.length>0) {
  		c_start=document.cookie.indexOf(c_name + "=");
  		if (c_start!=-1){ 
    		c_start=c_start + c_name.length+1; 
    		c_end=document.cookie.indexOf(";",c_start);
			if (c_end==-1){ 
				c_end=document.cookie.length;
			}
			return unescape(document.cookie.substring(c_start,c_end));
    	} 
  	}
	return "";
}

function checkCookie(){
	rewardCode = URLParamVal("rwdCode");
	if(rewardCode.length > 1){
		setCookie("rewardCode",rewardCode,null);
	}
}

function setNSMRegURL(){
	try{
		cookieRewardCode = getCookie('rewardCode');
		if(cookieRewardCode.length){
			document.getElementById('NSMRegURLId').href = NSMRegURL + "?rwdcode=" + cookieRewardCode;
		}
		else{
			document.getElementById('NSMRegURLId').href = NSMRegURL;	
		}
	}
	catch(e){}
	
}