// Preload the images
function wsiPreload(){
	if (document.images){
	  preload_image_object = new Image();
	  
	  // Set all the image url's to preload
	  image_url = new Array();
	  image_url[0] = "images/nav_about-ov.jpg";
	  image_url[1] = "images/nav_members-ov.jpg";
	  image_url[2] = "images/nav_program-ov.jpg";
	  image_url[3] = "images/nav_tools-ov.jpg";
	  image_url[4] = "images/nav_workshops-ov.jpg";
	  image_url[5] = "images/nav_trainers-ov.jpg";
	  image_url[6] = "images/nav_type-ov.jpg";
	  image_url[7] = "images/nav_newsletter-ov.jpg";
	  image_url[8] = "images/nav_contact-ov.jpg";
	  image_url[9] = "images/nav_home-ov.jpg";
	
	   var i = 0;
	   for(i=0; i<=9; i++) 
		 preload_image_object.src = image_url[i];
	}
}

function swap1(url,num){
	document["navlink"+num].src='images/' + url;
}

function swap2(url,num){
	document["navlink"+num].src='images/' + url;
}

function swap3(url,num){
	document["navlink"+num].src='/images/' + url;
}

function swap4(url,num){
	document["navlink"+num].src='/images/' + url;
}