var DHTML=(document.getElementById || document.all || document.layers);
function getObj(name)
{
if (document.getElementByID)
{
this.obj=document.getElementById(name);
this.style=document.getElementById(name).style;
}
else if (document.all)
{
this.obj=document.all[name];
this.style=document.all[name].style;
}
else if (document.layers)
{
this.obj=document.layers[name];
this.style=document.layers[name];
}
}

function showmenu(mm)
{
var x=new getObj(mm);

if(document.layers){

document.x.visibility="visible";
}
if(document.all){

x.style.visibility="visible";
}
if(!document.all && document.getElementById){

document.getElementById(mm).style.visibility="visible";
}
}



function hidemenu(mm)
{
var x=new getObj(mm);

if(document.layers){

document.x.visibility="hidden";
}
if(document.all){

x.style.visibility="hidden";
}
if(!document.all && document.getElementById){
document.getElementById(mm).style.visibility="hidden";
}
}


MyImages=new Array(); 
MyImages[0]="images/anode_back.jpg";
MyImages[1]="images/cathodic_protection_01.jpg";
MyImages[2]="images/cathodic_protection_02.jpg";
MyImages[3]="images/cathodic_protection_03.jpg";
MyImages[4]="images/cathodic_protection_04.jpg";
MyImages[5]="images/cathodic_protection_05.jpg";
MyImages[6]="images/cathodic_protection_06.jpg";
MyImages[7]="images/cathodic_protection1_07.jpg";
MyImages[8]="images/cathodic_protection_07.jpg";
MyImages[9]="images/cathodic_protection_09.jpg";
MyImages[10]="images/cathodic_protection1_09.jpg";
MyImages[11]="images/cathodic_protection_13.jpg";
MyImages[12]="images/cathodic_protection1_13.jpg";
MyImages[13]="images/cathodic_protection_17.jpg";
MyImages[14]="images/cathodic_protection1_17.jpg";
MyImages[15]="images/cathodic_protection_33.jpg";
MyImages[16]="images/cathodic_protection1_33.jpg";
MyImages[17]="images/cathodic_protection_19.jpg";
MyImages[18]="images/cathodic_protection1_19.jpg";
MyImages[19]="images/cathodic_protection_15.jpg";
MyImages[20]="images/cathodic_protection1_15.jpg";
MyImages[21]="images/cathodic_protection_11.jpg";
MyImages[22]="images/cathodic_protection1_11.jpg";
MyImages[23]="images/cathodic_protection_21.jpg";
MyImages[24]="images/cathodic_protection1_21.jpg";
MyImages[25]="images/ti_24.jpg";
MyImages[26]="images/ti1_24.jpg";
MyImages[27]="images/cathodic_protection_23.jpg";
MyImages[28]="images/cathodic_protection1_23.jpg";
MyImages[29]="images/cathodic_protection_25.jpg";
MyImages[30]="images/cathodic_protection1_25.jpg";
MyImages[31]="images/cathodic_protection_27.jpg";
MyImages[32]="images/cathodic_protection_back.jpg";
MyImages[33]="images/cathodic_protection_30.gif";
MyImages[34]="images/cathodic_protection_31.gif";

imagesPreloaded = new Array(35);

for (var i = 0; i < MyImages.length ; i++)
 {   
imagesPreloaded[i] = new Image();
imagesPreloaded[i].src=MyImages[i];
}