function oa_tool(){
				if(window.parent.contentMiddleFrame.cols=="0,9,*"){
				frameshow.src="images/hidden.GIF";
				oa_tree.title="隐藏工具栏"
				window.parent.contentMiddleFrame.cols="180,9,*";
				}
				else{
				frameshow.src="images/show.GIF";
				oa_tree.title="显示工具栏"
				window.parent.contentMiddleFrame.cols="0,9,*";
				}
			}
			function oa_tool1(){
				if(window.parent.contentMiddleFrame.cols=="0,9,*"){
				frameshow.src="/admin/images/hidden.GIF";
				window.parent.contentMiddleFrame.cols="190,9,*";
				}
				else{
				frameshow.src="/admin/images/show.GIF";
				window.parent.contentMiddleFrame.cols="0,9,*";
				}
			}