var Effects=new Object();
//产品类型切换特效
Effects.layerSwitch = function(num)
{
	if(num==1) 
	{
		document.getElementById("sbox1").style.display="block";
		document.getElementById("sbox2").style.display="none";
		document.getElementById("sbox3").style.display="none";
		document.getElementById("stab1").className="tabon";
		document.getElementById("stab2").className="taboff";
		document.getElementById("stab3").className="taboff";
	}
	else if(num==2)
	{
		document.getElementById("sbox1").style.display="none";
		document.getElementById("sbox2").style.display="block";
		document.getElementById("sbox3").style.display="none";
		document.getElementById("stab1").className="taboff";
		document.getElementById("stab2").className="tabon";
		document.getElementById("stab3").className="taboff";
	}
	else if(num==3)
	{
		document.getElementById("sbox1").style.display="none";
		document.getElementById("sbox2").style.display="none";
		document.getElementById("sbox3").style.display="block";
		document.getElementById("stab1").className="taboff";
		document.getElementById("stab2").className="taboff";
		document.getElementById("stab3").className="tabon";
	}
}