var GradSlidingPanel;
var UndergradSlidingPanel;
var gradLastTab="Liang";	// this should be set to the first tab that is shown
var undergradLastTab="Laura";	// this should be set to the first tab that is shown

function gradSwitchTab(tab)
{
	if (tab!=gradLastTab)
	{
		document.getElementById(tab).className=("tabActive");
		document.getElementById(gradLastTab).className=("tab");
		GradSlidingPanel.showPanel(tab+"Panel");
		gradLastTab=tab;
	}
}

function undergradSwitchTab(tab)
{
	if (tab!=undergradLastTab)
	{
		document.getElementById(tab).className=("tabActive");
		document.getElementById(undergradLastTab).className=("tab");
		UndergradSlidingPanel.showPanel(tab+"Panel");
		undergradLastTab=tab;
	}
}

Spry.Utils.addLoadListener(function()
{
	//// Grad panel
	// Show the sliding panels tab buttons.

	Spry.$$(".gradTabWrapper").setStyle("display: block");
	Spry.$$("#Liang, #Michelle, #Joanna, #Chris, #Dustin, #Sarah, #Keith, #Wafa, #Aaron").addEventListener("click", function(){ gradSwitchTab(this.id); return false; }, false);
	
	// Turn the slidingPanel region into a real sliding panel widget.

	Spry.$$("#GradSlidingPanel").addClassName("SlidingPanels").setAttribute("tabindex", "0");
	Spry.$$("#GradSlidingPanel > div").addClassName("SlidingPanelsContentGroup");
	Spry.$$("#GradSlidingPanel .SlidingPanelsContentGroup > div").addClassName("SlidingPanelsContent");

	GradSlidingPanel = new Spry.Widget.SlidingPanels("GradSlidingPanel");
	
	
	//// Undergrad panel
	// Show the sliding panels tab buttons.

	Spry.$$(".undergradTabWrapper").setStyle("display: block");
	Spry.$$("#Laura, #Srinija, #Siddharth, #Hubert, #Blake").addEventListener("click", function(){ undergradSwitchTab(this.id); return false; }, false);
	
	// Turn the slidingPanel region into a real sliding panel widget.

	Spry.$$("#UndergradSlidingPanel").addClassName("SlidingPanels").setAttribute("tabindex", "0");
	Spry.$$("#UndergradSlidingPanel > div").addClassName("SlidingPanelsContentGroup");
	Spry.$$("#UndergradSlidingPanel .SlidingPanelsContentGroup > div").addClassName("SlidingPanelsContent");

	UndergradSlidingPanel = new Spry.Widget.SlidingPanels("UndergradSlidingPanel");
});