function showextendedmenu(menuitemid) {
	jpcOffset=$("#"+menuitemid+"").offset();
	extenderLeft = jpcOffset.left + 1;
	$("#"+menuitemid+"extender").css('left', extenderLeft);
	$("#"+menuitemid+"extender").css('display', 'block');
}

function rmvextendedmenu(menuitemid) {
	$("#"+menuitemid+"extender").css('display', 'none');
}

function calculateContentHeight() {
	var contentHeight=94;
	var screenHeight=$(window).height();
	var headerHeight=$("#header").height();
	contentHeight=screenHeight-headerHeight; // height of the white space besides the header
	contentHeight-=230; // show 230px of the footer
	contentHeight-=94; // the height of the search box 
// divide the space by half ( top and bottom )
	contentHeight/=2;
	contentHeight=Math.ceil(contentHeight);

	$("#content").css('marginTop' , contentHeight);
	contentHeight+=94; // add the height of the search box
	$("#content").height(contentHeight);
}

function setLoading() {
	var loadingContainer = $("<div />")
		.appendTo('body')
		.addClass('loadingContainer');
	var loadingDiv = $("<div />")
		.appendTo('body')
		.addClass('divLoading')
		.html('<img src="http://blastmycv.com/imgs/sloading-54-54.gif" />');
}
function removeLoading() {
	$(document).find("div.loadingContainer").each(function(){
		$(this).remove();
	});
	$(document).find("div.divLoading").each(function(){
		$(this).remove();
	});
}