var ie6 = false;

$(document).ready(function() {

	//for future reference
	var userAgent = navigator.userAgent.toLowerCase();
	if (userAgent.indexOf('msie 6.0') != -1) {
		ie6 = true;
	}

	//load pinball effect ~ enables mouseover on whole div
	pinballEffect();

	jQuery.preloadImages = function()
		{
		 for(var i = 0; i<arguments.length; i++)
			{
	  			jQuery("<img>").attr("src", arguments[i]);
				}
		}

			$.preloadImages("../img/signinSlider.png", "../img/signin_button.gif");

 	// hides the siginSlider as soon as the DOM is ready
 	//$('#signSlider').hide();

	//document.getElementById('signSlider').style.zIndex = '3000';

 	// slides down on click
	$('#slideDown').click(function() {
		$('#signSlider').slideDown('fast');
		 
		return false;

	});

 	// slides down up click
	$('#slideUp').click(function() {
		$('#signSlider').slideUp('fast');
		
		return false;
	});


});

function getOffsetHeight(id)
{
h = Number.NaN;
if (document.getElementById) {
var ele = document.getElementById(id);
if (ele && typeof ele.offsetHeight != 'undefined') {
h = ele.offsetHeight;
}
}
return h;
}