var search_link='../bing_search/index.jsp?value=';
        	function goBing()
        	{
        		var text=document.getElementById('search_content').value;
        		window.open(search_link+encodeURI(text));
        	}
        	function goBaidu()
        	{
        		var text=document.getElementById('search_content').value
        		var link='http://www.baidu.com/s?ie=UTF-8&wd='+encodeURI(text);
        		window.open(link);
        	}
        	function goGoogle()
        	{
        		var text=document.getElementById('search_content').value
        		var link='http://www.google.com/search?hl=zh-CN&ie=UTF-8&q='+encodeURI(text);
        		window.open(link);
        	}
        	
        	function go_search()
        	{
        		if(document.getElementById('search1').className=='s1')
        		{
        			goBaidu();
        		}//else if(document.getElementById('search2').className=='s1')
        		//{
        			//goGoogle();
        		//}else
        		{
        			goBing();
        		}
        	}
        	
        	function changeSearch(obj)
        	{
        		document.getElementById('search1').className='s2';
        		//document.getElementById('search2').className='s2';
        		document.getElementById('search3').className='s2';
				document.getElementById('search1_1').className='s2';
        		//document.getElementById('search2_1').className='s2';
        		document.getElementById('search3_1').className='s2';
        		obj.className='s1';
				if(obj.id.indexOf('_1')!=-1)
				{
					document.getElementById(obj.id.replace('_1','')).className='s1';
				}
				else
				{
					document.getElementById(obj.id+'_1').className='s1';
				}
        	}
        	
        	//function bingsearch()
        	//{
        		//text=document.getElementById('search_content').value;
        		//search_link='../bing_search/index.jsp?value=';
        	//}
        	
        	function changeStyle(obj)
        	{
        		var _obj=obj.parentNode.childNodes;
        		for(var i=0;i<_obj.length;i++)
        		{
        			_obj[i].className='s1';
        		}
        		obj.className='s2';
        	}
        	function selectkeywords(obj)
        	{
        		document.getElementById('search_content').value=obj.innerHTML;
        	}