document.onclick=check; 
function check(e){ 
var target = (e && e.target) || (event && event.srcElement);


var objTabContent1 = document.getElementById('ctl00_ContentPlaceHolder1_tabcontent1'); 
var objTabButton1 = document.getElementById('tab1');
var objtabBckgd1 = document.getElementById('ctl00_ContentPlaceHolder1_tabBckgd1');

var objTabContent2 = document.getElementById('ctl00_ContentPlaceHolder1_tabcontent2'); 
var objTabButton2 = document.getElementById('tab2');
var objtabBckgd2 = document.getElementById('ctl00_ContentPlaceHolder1_tabBckgd2');

var objTabContent3 = document.getElementById('ctl00_ContentPlaceHolder1_tabcontent3'); 
var objTabButton3 = document.getElementById('tab3');
var objtabBckgd3 = document.getElementById('ctl00_ContentPlaceHolder1_tabBckgd3');

var objTabContent4 = document.getElementById('ctl00_ContentPlaceHolder1_tabcontent4'); 
var objTabButton4 = document.getElementById('tab4');
var objtabBckgd4 = document.getElementById('ctl00_ContentPlaceHolder1_tabBckgd4');

var objTabContent5 = document.getElementById('ctl00_ContentPlaceHolder1_tabcontent5'); 
 var objTabButton5 = document.getElementById('tab5');
 var objtabBckgd5 = document.getElementById('ctl00_ContentPlaceHolder1_tabBckgd5');


 if ((target == objTabButton1) || (target == objTabButton2) || (target == objTabButton3) || (target == objTabButton4) || (target == objTabButton5)) {

if (objtabBckgd1 != null) {
    objtabBckgd1.className = 'tabBckgdUnSelected';
    objTabContent1.className = 'hideContent';
}
if (objtabBckgd2 != null) {
    objtabBckgd2.className = 'tabBckgdUnSelected';
    objTabContent2.className = 'hideContent';
}
if (objtabBckgd3 != null) {
    objtabBckgd3.className = 'tabBckgdUnSelected';
    objTabContent3.className = 'hideContent';
}
if (objtabBckgd4 != null) {
    objtabBckgd4.className = 'tabBckgdUnSelected';
    objTabContent4.className = 'hideContent';
}

if (objtabBckgd5 != null) {
    objtabBckgd5.className = 'tabBckgdUnSelected';
    objTabContent5.className = 'hideContent';
}

if(target==objTabButton1)
	{
	objTabContent1.className = 'showContent'
	objtabBckgd1.className = 'tabBckgdSelected'
	
	}
if(target==objTabButton2) {
    objTabContent2.className = 'showContent'
	objtabBckgd2.className = 'tabBckgdSelected'
	}
if(target==objTabButton3) {
	objTabContent3.className = 'showContent'
	objtabBckgd3.className = 'tabBckgdSelected'
}

if(target==objTabButton4) {
	objTabContent4.className = 'showContent'
	objtabBckgd4.className = 'tabBckgdSelected'
}

if (target == objTabButton5) {
    objTabContent5.className = 'showContent'
    objtabBckgd5.className = 'tabBckgdSelected'
}

 } }