function shownhide(a,b) {  
//alert(a);
	var st9 = document.getElementById(a+"9");
	var st10 = document.getElementById(a+"10");
	var st11 = document.getElementById(a+"11");
	var st12 = document.getElementById(a+"12");
	var sld = document.getElementById("slider");
	var hld = document.getElementById("hold");
	var hld2 = document.getElementById("hold2");
	//alert(hld.offsetWidth);
	if(b) {
		st9.style.display = "block"; 
		st10.style.display = "block";
		st11.style.display = "block";
		st12.style.display = "block";
		//sld.style.width = (parseInt(sld.style.width) + 120)+"";
		}
    else {
		st9.style.display = "none";
		st10.style.display = "none";
		st11.style.display = "none";
		st12.style.display = "none";
		//sld.style.width = (parseInt(sld.style.width) - 120)+"";
		}
	sld.style.width = (parseInt(hld.offsetWidth) + 4*parseInt(hld2.offsetWidth))+"";
			
}