//左侧折叠菜单效果
function folder(divid1, imgid1, is_sub) {
	
	divid=document.getElementById(divid1);
	imgid=document.getElementById(imgid1);
	if(divid.style.display=="none") {
		divid.style.display="";
		if(is_sub==true)
			imgid.src="./images/work/arrow_a.jpg";
		else 
			imgid.src="./images/work/arrow_b.jpg";
	}
	else {
		divid.style.display="none";
		if(is_sub==true)
			imgid.src="./images/work/arrow_b.jpg";
		else
			imgid.src="./images/work/arrow_a.jpg";
	}
}



//点击左侧菜单,右边工作区的页面相应变换.
function setFocus(url) {
	  
		if(url != undefined && url != ""){
			
			var content = document.getElementById("iframeContent");
			//alert(content);
			content.innerHTML='<iframe name="frame_content" src="' + url 
				+ '" id="frame_content"	width="100%" scrolling="no" frameborder="0"  marginwidth="0" marginheight="0" allowtransparency="true" onload="this.height=window.frames[this.name].document.body.scrollHeight;"></iframe>';
			//var iframe = document.getElementById("frame_content");
			//iframe.src=url;
		
	}	
}