function highlightbutton(buttonid)
{
	/*var table = document.getElementById(buttonid + '_table');
	//alert(table.highlightstate);
	while(table.highlightstate == "highlighted")
	{alert("highlighted");}
	
	var speed = Math.round(500 / 100); 
	var timer = 0; 
	for(var i = document.getElementById(buttonid + "_div").style.opacity * 100; i <= 100; i++) 
	{ 
	 	setTimeout("changeOpac(" + i + ",'" + buttonid + "_img_left" + "')",(timer * speed));
	    setTimeout("changeOpac(" + i + ",'" + buttonid + "_div" + "')",(timer * speed));
	    setTimeout("changeOpac(" + i + ",'" + buttonid + "_img_right" + "')",(timer * speed));
	    timer++;
	}
	table.highlightstate = "highlighted";
	*/
}

function unhighlightbutton(buttonid)
{
	/*var table = document.getElementById(buttonid + '_table');
	//alert(table.highlightstate);
	while(table.highlightstate == "unhighlighted");
	{}
	
	var speed = Math.round(500 / 100); 
    var timer = 0; 
	for(var i = document.getElementById(buttonid + "_div").style.opacity * 100; i >= 0; i--) 
    { 
    	setTimeout("changeOpac(" + i + ",'" + buttonid + "_img_left" + "')",(timer * speed));
        setTimeout("changeOpac(" + i + ",'" + buttonid + "_div" + "')",(timer * speed));
        setTimeout("changeOpac(" + i + ",'" + buttonid + "_img_right" + "')",(timer * speed));
        timer++; 
    }
    
    table.highlightstate = "unhighlighted";*/
}

function highlightAquaButton(highlightid)
{
	/*var speed = Math.round(200 / 100); 
    var timer = 0; 

    //fade in image 
    for(i = document.getElementById(highlightid).style.opacity * 100; i <= 100; i++) { 
         setTimeout("changeOpac(" + i + ",'" + highlightid + "')",(timer * speed));
        timer++; 
    }*/
    
    document.getElementById(highlightid + "_left_img").src = "images/red_button_left.gif";
    document.getElementById(highlightid + "_centre_img").className = "buttonmainhighlight";
    document.getElementById(highlightid + "_right_img").src = "images/red_button_right.gif";
}

function unhighlightAquaButton(highlightid)
{
	/*var speed = Math.round(200 / 100); 
    var timer = 0;

    //fade out image 
    for(i = document.getElementById(highlightid).style.opacity * 100; i >= 0; i--) { 
         setTimeout("changeOpac(" + i + ",'" + highlightid + "')",(timer * speed));
        timer++; 
        //alert(document.getElementById(highlightid).style.opacity);
    }*/
    
    document.getElementById(highlightid + "_left_img").src = "images/aqua_button_left.gif";
    document.getElementById(highlightid + "_centre_img").className = "buttonmain";
    document.getElementById(highlightid + "_right_img").src = "images/aqua_button_right.gif";
}

function enableAquaButton(highlightid)
{
	document.getElementById(highlightid + "_left_img").src = "images/aqua_button_left.gif";
    document.getElementById(highlightid + "_centre_img").className = "buttonmain";
    document.getElementById(highlightid + "_centre_img").disabled = false;
    document.getElementById(highlightid + "_right_img").src = "images/aqua_button_right.gif";
}

function disableAquaButton(highlightid)
{
	document.getElementById(highlightid + "_left_img").src = "images/grey_button_left.gif";
	document.getElementById(highlightid + "_centre_img").className = "buttonmaindisabled";
    document.getElementById(highlightid + "_centre_img").disabled = true;
    document.getElementById(highlightid + "_right_img").src = "images/grey_button_right.gif";
}

function hideAquaButton(highlightid)
{
	document.getElementById(highlightid).style.display = "none";
}

function showAquaButton(highlightid)
{
	document.getElementById(highlightid).style.display = "";
}

function selectMenuBarItem(oMenuBarItem)
{
	oMenuBarItem.className = "menubaritemhighlight";
	oMenuBarItem.nextSibling.style.display = "";
}

function unselectMenuBarItem(oMenuBarItem)
{
	oMenuBarItem.className = "menubaritem";
	oMenuBarItem.nextSibling.style.display = "none";
}

function closeMenuGroup(oMenuBarItem,oMenuGroup)
{
	oMenuBarItem.className = "menubaritem";
	oMenuGroup.style.display = "none";
}

function highlightMenuItem(oMenuItem)
{
	oMenuItem.className = "menuitemhighlight";
}

function unhighlightMenuItem(oMenuItem)
{
	oMenuItem.className = "menuitem";
}

function selectMenuItem(oMenuItem,url)
{
	alert(url);
}