//for copyright year
var yr;
Today = new Date();
yr = Today.getFullYear();

var preloadFlag = false; // sets flag that says all cached images aren't loaded yet

function preloadImages() {
	if (document.images) {
		
		var num_nav_items = 8;
		
		for (i = 1; i <= num_nav_items; i++)
			{
				eval("n" + i + "on = new Image();");        
	           	eval("n" + i + "on.src = 'images/main_nav_text"+ i +"_on.jpg'"); 
				eval("n" + i + "off = new Image();"); 
				eval("n" + i + "off.src = 'images/main_nav_text"+ i +"_off.jpg'");       
	         }
			 
		preloadFlag = true; 
		                                 
    }
};

function img_act(imgName) { 
     if ((document.images)&&(preloadFlag))  {
	   	imgOn = eval(imgName + "on.src");
		document [imgName].src = imgOn;
     }
};

function img_inact(imgName) {
      if ((document.images)&&(preloadFlag))  {
	   	imgOff = eval(imgName + "off.src");
		document [imgName].src = imgOff;
     }
};
preloadImages();