window.onload=function (){ 
ttaabb(1);
dh_ttaabb(1);
}

function ttaabb(a)
{
	if(a==1)
	{
		document.getElementById("ttaabb1").className="index_news1";
		document.getElementById("ttaabb2").className="index_news2";

		document.getElementById("hssp").style.display="";
		document.getElementById("hsgj").style.display = "none";

	}
	else
	{
		document.getElementById("ttaabb1").className="index_news2";
		document.getElementById("ttaabb2").className="index_news1";

		document.getElementById("hssp").style.display="none";
		document.getElementById("hsgj").style.display = "";

	}
}

function dh_ttaabb(a)
{
	if(a==1)
	{
		document.getElementById("dh_ttaabb1").className="index_news1";
		document.getElementById("dh_ttaabb2").className="index_news2";
		document.getElementById("xydh").style.display="";
		document.getElementById("jgdh").style.display = "none";
	}
	else
	{
		document.getElementById("dh_ttaabb1").className="index_news2";
		document.getElementById("dh_ttaabb2").className="index_news1";
		document.getElementById("xydh").style.display="none";
		document.getElementById("jgdh").style.display = "";
	}
}