function ChangeDiv(divId,divName,zDivCount) 
{ 
 for(i=0;i<=zDivCount;i++)
 {
     document.getElementById(divName+i).style.display="none"; 
 }
 document.getElementById(divName+divId).style.display="block"; 
} 
function ChangeDiv1(divId1,divName1,zDivCount1) 
{ 
 for(i=0;i<=zDivCount1;i++)
 {
     document.getElementById(divName1+i).style.display="none"; 
 }
 document.getElementById(divName1+divId1).style.display="block"; 
}