$(document).ready(function() {
	
    // Preload all rollovers
    $("#nav img").each(function() {
	    // Set the original src
	    rollsrc = $(this).attr("src");
	    rollON = rollsrc.replace(/.jpg$/ig,"_hover.jpg");
	    $("<img>").attr("src", rollON);
    });
	
    // Navigation rollovers
    $("#nav a").mouseover(function(){
	    imgsrc = $(this).children("img").attr("src");
	    matches = imgsrc.match(/_hover/);
		
	    // don't do the rollover if state is already ON
	    if (!matches) {
	        imgsrcON = imgsrc.replace(/.jpg$/ig,"_hover.jpg"); // strip off extension
	        $(this).children("img").attr("src", imgsrcON);
	    }
    });
    $("#nav a").mouseout(function(){
	    $(this).children("img").attr("src", imgsrc);
    });	
    
    // Obfuscated email address.
    $(".email_address").replaceWith("<a href=\"mailto" + ":walte" + "rs@trialdefense.biz\">walte" + "rs@trialdefense.biz</a>");
});