function switchImg(obj, act) {
	if (act=="on") {
	 	obj.src = "images/"+obj.name+"_ro.jpg";
	 	
	 }	
	 else {
	 	obj.src = "images/"+obj.name+".jpg";
	 	
	 }
} 
function switchBg(obj, act) {

	if (act=="on") {
	 	obj.style.backgroundImage = "url(images/mkiHCP_sampleBttn_ro.jpg)";
	 	
	 }	
	 else {
	 	obj.style.backgroundImage = "url(images/mkiHCP_sampleBttn.jpg)";
	 	
	 }
} 
function switchPng(obj, act) {
	if (act=="on") {
	 	obj.src = "images/"+obj.name+"_ro.png";
	 	
	 }	
	 else {
	 	obj.src = "images/"+obj.name+".png";
	 	
	 }
} 
function switchGif(obj, act) {
	if (act=="on") {
	 	obj.src = "images/"+obj.name+"_ro.gif";
	 	
	 }	
	 else {
	 	obj.src = "images/"+obj.name+".gif";
	 	
	 }
} 

function switchHover(obj, act){
	if (act=="on") {
	 	obj.src = "images/"+obj.name+"_hover."+ext;
	 	
	 }	
	 else {
	 	obj.src = "images/"+obj.name+"_off.png";
	 	
	 }
}