//if it doesnot have iframes redirect to main page.
//Set the redirect_url before calling this javascript
if (window.parent.frames.length <= 0) {
    var address = window.location.toString();
    var indexOfQuestionMark = address.indexOf("?");
    var querystringContent = "";
    if (indexOfQuestionMark != -1) {
        querystringContent = address.substring(indexOfQuestionMark + 1);
        if (querystringContent.length > 0) {
            querystringContent = '?' + querystringContent;
        }
    }
    if (redirect_url != null) {
		var po = getQuerystringValue('po');
		if (po == "false"){
			createCookie('po','false',10);
		}
		else{
			if (readCookie('po') == "false"){
			}
			else{
				top.location.href = redirect_url + querystringContent;
			}
		}
    }
}
 function getQuerystringValue(item) {
	entireQuerystring = window.location.search.substring(1);
	partial = entireQuerystring.split("&");
	for (i=0;i<partial.length;i++) {
		itemReviewing = partial[i].split("=");
		if (itemReviewing[0] == item) {
			return itemReviewing[1];
		}
	}
}


function createCookie(name,value,minutes) {
	if (minutes) {
		var date = new Date();
		date.setTime(date.getTime()+(minutes*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 null;
}