/**
 * This function redirects the page based on the inputs when user changes the item count per page
 * Calling routine must know whether or not there are other parameters in the query string
 * In the architecture at the time this was written, the difference occurs between
 * whether the user is navigating through products (no parameters except pagecount) 
 * or using search (everything is a parameter)
 * @param {String} queryStr the base string plus existing parameters (if any)
 * @param {Number} newItemsCount number of items per page
 * @param {Boolean} isFirstParam true if there are no parameters yet in the queryStr
 * @author Mike Smith
 */
function changePageItemsCount(queryStr, newItemsCount, isFirstParam)
{
	var separator = "&";
//	if (isFirstParam)
//		separator = "?";
	document.location = queryStr + separator + "pageItemsCount=" + newItemsCount;
}