homeon = new Image(56,23); 
homeon.src = "images/home_roll.jpg";
homeoff = new Image(56,23);
homeoff.src = "images/home_btn.jpg";

abouton = new Image(151,23); 
abouton.src = "images/artist_roll.jpg";
aboutoff = new Image(151,23);
aboutoff.src = "images/artist_btn.jpg";

portfolioon = new Image(96,23); 
portfolioon.src = "images/portfolio_roll.jpg";
portfoliooff = new Image(96,23);
portfoliooff.src = "images/portfolio_btn.jpg";

contacton = new Image(97,23); 
contacton.src = "images/contact_roll.jpg";
contactoff = new Image(97,23);
contactoff.src = "images/contact_btn.jpg";

graphicson = new Image(129,26); 
graphicson.src = "images/graphic_roll.jpg";
graphicsoff = new Image(129,26);
graphicsoff.src = "images/graphic_btn.jpg";

videoon = new Image(157,26); 
videoon.src = "images/video_roll.jpg";
videooff = new Image(157,26);
videooff.src = "images/video_btn.jpg";

threeDon = new Image(42,26); 
threeDon.src = "images/3d_roll.jpg";
threeDoff = new Image(42,26);
threeDoff.src = "images/3d_btn.jpg";

photographyon = new Image(135,26); 
photographyon.src = "images/photography_roll.jpg";
photographyoff = new Image(135,26);
photographyoff.src = "images/photography_btn.jpg";

function rollOver(imgName,imgRollVar){
	document[imgName].src = eval(imgRollVar + ".src");
}