normal_image1 = new Image();
normal_image1.src = "images/nav_home.gif";

mouseover_image1 = new Image();
mouseover_image1.src = "images/nav_home_roll.gif";

normal_image2 = new Image();
normal_image2.src = "images/nav_paper.gif";

mouseover_image2 = new Image();
mouseover_image2.src = "images/nav_paper_roll.gif";

normal_image9 = new Image();
normal_image9.src = "images/nav_datastorage.gif";

mouseover_image9 = new Image();
mouseover_image9.src = "images/nav_datastorage_roll.gif";

normal_image3 = new Image();
normal_image3.src = "images/nav_dataconversion.gif";

mouseover_image3 = new Image();
mouseover_image3.src = "images/nav_dataconversion_roll.gif";

normal_image4 = new Image();
normal_image4.src = "images/nav_medical.gif";

mouseover_image4 = new Image();
mouseover_image4.src = "images/nav_medical_roll.gif";

normal_image5 = new Image();
normal_image5.src = "images/nav_retention.gif";

mouseover_image5 = new Image();
mouseover_image5.src = "images/nav_retention_roll.gif";

normal_image6 = new Image();
normal_image6.src = "images/nav_records.gif";

mouseover_image6 = new Image();
mouseover_image6.src = "images/nav_records_roll.gif";

normal_image7 = new Image();
normal_image7.src = "images/nav_boxes.gif";

mouseover_image7 = new Image();
mouseover_image7.src = "images/nav_boxes_roll.gif";


normal_image8 = new Image();
normal_image8.src = "images/nav_firelock.gif";

mouseover_image8 = new Image();
mouseover_image8.src = "images/nav_firelock_roll.gif";

normal_image10 = new Image();
normal_image10.src = "images/nav_onlinedata.gif";

mouseover_image10 = new Image();
mouseover_image10.src = "images/nav_onlinedata_roll.gif";

normal_image11 = new Image();
normal_image11.src = "images/nav_documentmanage.gif";

mouseover_image11 = new Image();
mouseover_image11.src = "images/nav_documentmanange_roll.gif";

function swap(){
if (document.images){
for (var x=0;
x<swap.arguments.length;
x+=2) {
document[swap.arguments[x]].src = eval(swap.arguments[x+1] + ".src");
}
}
}