var maincontent3 = 2;
var k1 = "url(images/page/KtLabel_Link.jpg) no-repeat"; 
var t1 = "url(images/page/KtLabel_Hover.jpg) no-repeat"; 
var k2 = "url(images/page/KtLabel_Link.jpg) no-repeat"; 
var t2 = "url(images/page/KtLabel_Hover.jpg) no-repeat";  

function Tomaincontent3(item) 
{ 
  for (var i=1; i<= maincontent3; i++){
    Kt_main_content = document.getElementById("Kt_main_content_"+ i); 
	Kt_label = document.getElementById("Kt_label_"+ i); 
    Kt_main_content.style.display = "none"; 
	Kt_label.style.background = eval("k"+i); 
  }
    Kt_main_content = document.getElementById("Kt_main_content_"+ item); 
	Kt_label = document.getElementById("Kt_label_"+ item); 
    Kt_main_content.style.display = "block"; 
	Kt_label.style.background = eval("t"+item); 
}