var NS4DOM=(document.layers) ? true:false;
if(NS4DOM){
location.href="warnings/upgrade.htm";
}
//global variables to control menu behavior index.htm
//howisit reflects the status of tut_menu
//second reflects the status of any submenu
var howisit=null;
var second=null;
//preload images for certificate links
//create image objects
var cert_pix=new Array();
//assign graphics to image objects
cert_pix[0]="
";
cert_pix[1]="
";
cert_pix[2]="
";
cert_pix[3]="
";
cert_pix[4]="
";
cert_pix[5]="
";
//function to randomly select certificate images
function certificates(){
var num=Math.round(Math.random()*5);
return cert_pix[num];
}
function checkit(){
var answer=confirm("Are you sure you want to clear the form?");
return answer;
}
function doublecheck(){
var answer=confirm("Are you sure you want to submit the data? This will alter the record in the database for this course");
}
//used on index.htm for tutorial files menu
function showit(nam){
if(howisit){
howisit.style.visibility="hidden";
howisit=null;
if(second)second.style.visibility="hidden";
second=null;
}else{
howisit=document.getElementById(nam);
howisit.style.visibility="visible";
}
}
function showsub(submen){
if(second){
second.style.visibility="hidden";
second=null;
second=document.getElementById(submen);
second.style.visibility="visible";
}else{
second=document.getElementById(submen);
second.style.visibility="visible";
}
}
function hidesub(){
if(second){
second.style.visibility="hidden";
second=null;
}
}
//ARRAYS TO RANDOMIZE CONTENT HOME PAGE
//array to randomize graduates graphics and links
var grads=new Array();
grads[0]="
";
grads[1]="
";
grads[2]="
";
grads[3]="
";
grads[4]="
";
//function to randomize graduate content
function graduates(){
var num=Math.round(Math.random()*4);
return grads[num];
}
var lab_pix=new Array();
lab_pix[0]="
";
lab_pix[1]="
";
lab_pix[2]="
";
lab_pix[3]="
";
lab_pix[4]="
";
lab_pix[5]="
";
lab_pix[6]="
";
function rand_lab(){
var num=Math.round(Math.random()*6);
return lab_pix[num];
}