originalpic ="pix/nav/"
overpic ="pix/nav/"


one_1=new Image(); one_1.src=originalpic + "01.gif";
one_0=new Image(); one_0.src=overpic + "01_o.gif";
		
two_1=new Image(); two_1.src=originalpic + "02.gif";
two_0=new Image(); two_0.src=overpic + "02_o.gif";
		
three_1=new Image(); three_1.src=originalpic + "03.gif";
three_0=new Image(); three_0.src=overpic + "03_o.gif";
		
four_1=new Image(); four_1.src=originalpic + "04.gif";
four_0=new Image(); four_0.src=overpic + "04_o.gif";


function over(picName){
document.images[picName].src = eval([picName] + "_0" + ".src");
}

function org(picName){
document.images[picName].src = eval([picName] + "_1" + ".src");
}