// JavaScript Document
function opencat1(){
 var q=document.getElementById("cat1");
 var w=document.getElementById("cat2");
 var e=document.getElementById("cat3");
 var r=document.getElementById("cat4");
 q.style.display="";
 w.style.display="none";
 e.style.display="none";
 r.style.display="none";
}
function opencat2(){
 var q=document.getElementById("cat1");
 var w=document.getElementById("cat2");
 var e=document.getElementById("cat3");
 var r=document.getElementById("cat4");
 q.style.display="none";
 w.style.display="";
 e.style.display="none";
 r.style.display="none";
 }
 function opencat3(){
var q=document.getElementById("cat1");
 var w=document.getElementById("cat2");
 var e=document.getElementById("cat3");
 var r=document.getElementById("cat4");
 q.style.display="none";
 w.style.display="none";
 e.style.display="";
 r.style.display="none";
 }
function opencat4(){
var q=document.getElementById("cat1");
 var w=document.getElementById("cat2");
 var e=document.getElementById("cat3");
 var r=document.getElementById("cat4");
 q.style.display="none";
 w.style.display="none";
 e.style.display="none";
 r.style.display="";
 }
function changebackground1()
{
 var q=document.getElementById("b1");
 var w=document.getElementById("b2");
 var e=document.getElementById("b3");
 var r=document.getElementById("b4");
 q.style.backgroundImage="url(images/line.jpg)";
 w.style.backgroundImage="none";
 e.style.backgroundImage="none";
 r.style.backgroundImage="none";

}
function changebackground2()
{
 var q=document.getElementById("b1");
 var w=document.getElementById("b2");
 var e=document.getElementById("b3");
 var r=document.getElementById("b4");
 q.style.backgroundImage="none";
 w.style.backgroundImage="url(images/line.jpg)";
 e.style.backgroundImage="none";
 r.style.backgroundImage="none";

}
function changebackground3()
{
 var q=document.getElementById("b1");
 var w=document.getElementById("b2");
 var e=document.getElementById("b3");
 var r=document.getElementById("b4");
 q.style.backgroundImage="none";
 w.style.backgroundImage="none";
 e.style.backgroundImage="url(images/line.jpg)";
 r.style.backgroundImage="none";

}
function changebackground4()
{
 var q=document.getElementById("b1");
 var w=document.getElementById("b2");
 var e=document.getElementById("b3");
 var r=document.getElementById("b4");
 q.style.backgroundImage="none";
 w.style.backgroundImage="none";
 e.style.backgroundImage="none";
 r.style.backgroundImage="url(images/line.jpg)";

}
function changecursor(cat)
{
	cat.style.cursor="hand";
}