function get_offset(el,type)
{
    var i = 0;
		var nde = el;
    while (nde != document.body)
    {
        try { 
    			i += (type=='left') ? nde.offsetLeft:nde.offsetTop;
					nde = nde.offsetParent;
        } catch (ex) {
        	break;
        }
    }
    return i;
}

$(document).ready(function() {
	var elem = document.getElementById('top_pos');
	var pos_left = get_offset(elem,'left');
	var pos_top = get_offset(elem,'top');
	$('#welcome_content').load('login_popup.php');
	
	
	$('#welcome').css({
			"top": (pos_top-5) +"px",
			"left":(pos_left-18) +"px"
	});

	$('#welcome_content').css({
			"top": (pos_top+5) +"px",
			"left":(pos_left-8) +"px"
	});		
	
	$('.welcome_link').click(function() {
		$('#welcome').show();
		$('#welcome_content').show();
		return false;
	});
	
	$(window).resize(function() {
		var elem = document.getElementById('top_pos');
		var pos_left = get_offset(elem,'left');
		var pos_top = get_offset(elem,'top');		
		
		$('#welcome').css({
				"top": (pos_top-5) +"px",
				"left":(pos_left-18) +"px"
		});
	
		$('#welcome_content').css({
				"top": (pos_top+5) +"px",
				"left":(pos_left-8) +"px"
		});			
	});
});