<!-- hide  if (document.images) {  why_f2 = new Image(210 ,31); why_f2.src = "images/nav/why_f2.jpg";  why_f1 = new Image(210 ,31); why_f1.src = "images/nav/why.jpg";  which_f2 = new Image(210 ,29); which_f2.src = "images/nav/which_f2.jpg";  which_f1 = new Image(210 ,29); which_f1.src = "images/nav/which.jpg";  what_f2 = new Image(210 ,28); what_f2.src = "images/nav/what_f2.jpg";  what_f1 = new Image(210 ,28); what_f1.src = "images/nav/what.jpg";  articles_f2 = new Image(210 ,29); articles_f2.src = "images/nav/articles_f2.jpg";  articles_f1 = new Image(210 ,29); articles_f1.src = "images/nav/articles.jpg";  answers_f2 = new Image(210 ,28); answers_f2.src = "images/nav/answers_f2.jpg";  answers_f1 = new Image(210 ,28); answers_f1.src = "images/nav/answers.jpg";  nav_r7_c1_f2 = new Image(210 ,29); nav_r7_c1_f2.src = "images/nav/nav_r7_c1_f2.jpg";  nav_r7_c1_f1 = new Image(210 ,29); nav_r7_c1_f1.src = "images/nav/nav_r7_c1.jpg";  home_f2 = new Image(210 ,25); home_f2.src = "images/nav/home_f2.jpg";  home_f1 = new Image(210 ,25); home_f1.src = "images/nav/home.jpg";  }  function MM_findObj(n, d) { //v4.01  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);  if(!x && d.getElementById) x=d.getElementById(n); return x;}function MM_swapImage() { //v3.0  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}}function MM_swapImgRestore() { //v3.0  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;}            // stop hiding -->