function checkExpand(ch) { 
    var obj=document.all && document.all(ch) || document.getElementById && document.getElementById(ch); 
    if(obj && obj.style) obj.style.display= 
    "none" == obj.style.display ?"" : "none" 

} 


var imgselect1=1;
function picchange1(){
switch(imgselect1){
case 0:
img1.src = "img/open.gif";
imgselect1++;
break
case 1:
img1.src = "img/close.gif";
imgselect1=0;
break
} 
} 

var imgselect2=1;
function picchange2(){
switch(imgselect2){
case 0:
img2.src = "img/open.gif";
imgselect2++;
break
case 1:
img2.src = "img/close.gif";
imgselect2=0;
break
} 
} 

var imgselect3=1;
function picchange3(){
switch(imgselect3){
case 0:
img3.src = "img/open.gif";
imgselect3++;
break
case 1:
img3.src = "img/close.gif";
imgselect3=0;
break
} 
} 

var imgselect4=1;
function picchange4(){
switch(imgselect4){
case 0:
img4.src = "img/open.gif";
imgselect4++;
break
case 1:
img4.src = "img/close.gif";
imgselect4=0;
break
} 
} 


var imgselect5=1;
function picchange5(){
switch(imgselect5){
case 0:
img5.src = "img/open.gif";
imgselect5++;
break
case 1:
img5.src = "img/close.gif";
imgselect5=0;
break
} 
} 


var imgselect6=1;
function picchange6(){
switch(imgselect6){
case 0:
img6.src = "img/open.gif";
imgselect6++;
break
case 1:
img6.src = "img/close.gif";
imgselect6=0;
break
} 
} 


var imgselect7=1;
function picchange7(){
switch(imgselect7){
case 0:
img7.src = "img/open.gif";
imgselect7++;
break
case 1:
img7.src = "img/close.gif";
imgselect7=0;
break
} 
} 


var imgselect8=1;
function picchange8(){
switch(imgselect8){
case 0:
img8.src = "img/open.gif";
imgselect8++;
break
case 1:
img8.src = "img/close.gif";
imgselect8=0;
break
} 
} 


var imgselect9=1;
function picchange9(){
switch(imgselect9){
case 0:
img9.src = "img/open.gif";
imgselect9++;
break
case 1:
img9.src = "img/close.gif";
imgselect9=0;
break
} 
}