function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		About_us_over = newImage("Images/About-us-over.gif");
		News_over = newImage("Images/News-over.gif");
		calendar_over = newImage("Images/calendar-over.gif");
		documents_over = newImage("Images/documents-over.gif");
		opportunities_over = newImage("Images/opportunities-over.gif");
		forum_over = newImage("Images/forum-over.gif");
		members_over = newImage("Images/members-over.gif");
		patients_over = newImage("Images/patients-over.gif");
		preloadFlag = true;
	}
}

function toggleNewsItem(id, lnkid)
{
	if($(lnkid).getAttribute('linkstatus') == "more")
	{
	    $(lnkid).setAttribute('linkstatus','less') ;	    
        $(lnkid).innerHTML == "less";
        new Effect.BlindDown(id);
		new Effect.Appear(id);
			
	}
	
	else
	{
	    $(lnkid).setAttribute('linkstatus','more') ;
		$(lnkid).innerHTML == "read more";
		new Effect.BlindUp(id);
		new Effect.Fade(id);		
			
	}		
}

function toggleVisibility(id)
{
	if($(id).style.display == "none")
	{	   	            
        new Effect.BlindDown(id);
		new Effect.Appear(id);			
	}
	
	else
	{
		new Effect.BlindUp(id);
		new Effect.Fade(id);		
			
	}		
}