<!--
	function changeContent(menudm){
		switch(menudm){
			case "1":
				changeMenuStyle("1");
				resetMenuStyle("bt1");
				window.frames["contentIframe"].location.href="index_xjzbs.php";
				break;
			case "2":
				changeMenuStyle("2");
				resetMenuStyle("bt2");
				window.frames["contentIframe"].location.href="index_spjlk.php";
				break;
			case "3":
				changeMenuStyle("3");
				resetMenuStyle("bt3");
				window.frames["contentIframe"].location.href="index_dwzbt.php";
				break;
			case "4":
				changeMenuStyle("4");
				resetMenuStyle("bt4");
				window.frames["contentIframe"].location.href="index_stcdz.php";
				break;
			case "5":
				changeMenuStyle("5");
				resetMenuStyle("bt5");
				window.frames["contentIframe"].location.href="index_ycmsj.php";
				break;
		}
	}
	function changeMenuStyle(idNum){
		document.links[idNum].style.color="#95131D";
		document.getElementById("bt"+idNum).style.background="url(images/hovermenubg.gif)";
	}
	function resetMenuStyle(nowmenuid){
		for(var i=1;i<=5;i++){
			if(nowmenuid!=("bt"+i)){
				document.links[i].style.color="black";
				document.getElementById("bt"+i).style.background="url(images/menu"+i+".gif)";
			}
		}
	}
//-->