function showsidetab( num)
{

 document.getElementById("sidetab1").style.display="none"; //hide all the tab 
 document.getElementById("sidetab2").style.display="none"; //hide all the tab 
document.getElementById("sidetab3").style.display="none"; //hide all the tab 
document.getElementById("sidetab4").style.display="none"; //hide all the tab 
document.getElementById("sidetab5").style.display="none"; //hide all the tab 


 var curElement="sidetab"+num;
 //get a reference to the current element..
 var celemnt=document.getElementById(curElement);
 
 celemnt.style.display="block";

}

window.onload= function()
{
 document.getElementById("sidetab2").style.display="none"; //hide all the tab 
document.getElementById("sidetab3").style.display="none"; //hide all the tab 
document.getElementById("sidetab4").style.display="none"; //hide all the tab 
document.getElementById("sidetab5").style.display="none"; //hide all the tab 
}

function showFooterTab( num)
{

 document.getElementById("footertab1").style.display="none"; //hide all the tab 
 document.getElementById("footertab2").style.display="none"; //hide all the tab 
document.getElementById("footertab3").style.display="none"; //hide all the tab 
document.getElementById("footertab4").style.display="none"; //hide all the tab 
//document.getElementById("footertab5").style.display="none"; //hide all the tab 


 var curElement="footertab"+num;
 //get a reference to the current element..
 var celemnt=document.getElementById(curElement);
 
 celemnt.style.display="block";

}