window.onload=function(){  
  new Marquee(  
    "exhibitions_con",  //容器ID<br>  
    0,  //向上滚动(0向上 1向下 2向左 3向右)<br>  
    2,  //滚动的步长<br>  
    268,  //容器可视宽度<br>  
    191,  //容器可视高度<br>  
    50,  //定时器 数值越小，滚动的速度越快(1000=1秒,建议不小于20)<br>  
    1700,  //间歇停顿时间(0为不停顿,1000=1秒)<br>  
    100,  //开始时的等待时间(0为不等待,1000=1秒)<br>  
    24  //间歇滚动间距(可选)<br>  
    );  
  };  
function Marquee(){  
  this.ID=document.getElementById(arguments[0]);  
  this.Direction=arguments[1];  
  this.Step=arguments[2];  
  this.Width=arguments[3];  
  this.Height=arguments[4];  
  this.Timer=arguments[5];  
  this.WaitTime=arguments[6];  
  this.StopTime=arguments[7];  
  if(arguments[8]){this.ScrollStep=arguments[8];}else{this.ScrollStep=this.Direction>1?this.Width:this.Height;}  
  this.CTL=this.StartID=this.Stop=this.MouseOver=0;  
  this.ID.style.overflowX=this.ID.style.overflowY="hidden";  
  this.ID.noWrap=true;  
  this.ID.style.width=this.Width;  
  this.ID.style.height=this.Height;  
  this.ClientScroll=this.Direction>1?this.ID.scrollWidth:this.ID.scrollHeight;  
  this.ID.innerHTML+=this.ID.innerHTML;  
  this.Start(this,this.Timer,this.WaitTime,this.StopTime);  
  }  
Marquee.prototype.Start=function(msobj,timer,waittime,stoptime){  
  msobj.StartID=function(){msobj.Scroll();}  
  msobj.Continue=function(){  
    if(msobj.MouseOver==1){setTimeout(msobj.Continue,waittime);}  
    else{clearInterval(msobj.TimerID); msobj.CTL=msobj.Stop=0; msobj.TimerID=setInterval(msobj.StartID,timer);}  
    }  
  msobj.Pause=function(){msobj.Stop=1; clearInterval(msobj.TimerID); setTimeout(msobj.Continue,waittime);}  
  msobj.Begin=function(){  
    msobj.TimerID=setInterval(msobj.StartID,timer);  
    msobj.ID.onmouseover=function(){msobj.MouseOver=1; clearInterval(msobj.TimerID);}  
    msobj.ID.onmouseout=function(){msobj.MouseOver=0; if(msobj.Stop==0){clearInterval(msobj.TimerID); msobj.TimerID=setInterval(msobj.StartID,timer);}}  
    }  
  setTimeout(msobj.Begin,stoptime);  
  }  
Marquee.prototype.Scroll=function(){  
  switch(this.Direction){  
    case 0:  
      this.CTL+=this.Step;  
      if(this.CTL>=this.ScrollStep&&this.WaitTime>0){this.ID.scrollTop+=this.ScrollStep+this.Step-this.CTL; this.Pause(); return;}  
      else{if(this.ID.scrollTop>=this.ClientScroll) this.ID.scrollTop-=this.ClientScroll; this.ID.scrollTop+=this.Step;}  
      break;  
    case 1:  
      this.CTL+=this.Step;  
      if(this.CTL>=this.ScrollStep&&this.WaitTime>0){this.ID.scrollTop-=this.ScrollStep+this.Step-this.CTL; this.Pause(); return;}  
      else{if(this.ID.scrollTop<=0) this.ID.scrollTop+=this.ClientScroll; this.ID.scrollTop-=this.Step;}  
      break;  
    case 2:  
      this.CTL+=this.Step;  
      if(this.CTL>=this.ScrollStep&&this.WaitTime>0){this.ID.scrollLeft+=this.ScrollStep+this.Step-this.CTL; this.Pause(); return;}  
      else{if(this.ID.scrollLeft>=this.ClientScroll) this.ID.scrollLeft-=this.ClientScroll; this.ID.scrollLeft+=this.Step;}  
      break;  
    case 3:  
      this.CTL+=this.Step;  
      if(this.CTL>=this.ScrollStep&&this.WaitTime>0){this.ID.scrollLeft-=this.ScrollStep+this.Step-this.CTL; this.Pause(); return;}  
      else{if(this.ID.scrollLeft<=0) this.ID.scrollLeft+=this.ClientScroll; this.ID.scrollLeft-=this.Step;}  
      break;  
    }  
  }  

var num,i,z,heightnum;
function searchs(searchnum)
{

	for (i=1;i<=5;i++)
	{
		if (searchnum == 'search'+i)
		{
			searchmouse = document.getElementById("search"+i);
			searchmouse.style.cursor="pointer";
			searchmouse.style.height="70px";
			searchmouse.style.padding="5px 0px 0px 0px";
			searchmousedd = document.getElementById("searchdd"+i);
			searchmousedd.style.height = "40px";
		}
		else
		{
			searchmouse = document.getElementById("search"+i);
			searchmouse.style.height="50px";
			searchmouse.style.padding="5px 0px 3px 0px";
			searchmousedd = document.getElementById("searchdd"+i);
			searchmousedd.style.height = "13px";
		}
	}
}

	  function gotoclick(tagnum)
	  {
	  	for (i=1;i<=8;i++)
		{
			if (tagnum == "tag"+i)
			{
				var tee = document.getElementById("tag"+i);
				tee.style.padding = "4px 17px 4px 17px";
				document.getElementById("tag"+i).getElementsByTagName("a")[0].style.color="#FF6600";
				document.getElementById("tag"+i).getElementsByTagName("a")[0].style.fontWeight="bold";
				var tag = document.getElementById("menu_tabcon"+i);
				tag.style.display="block";
			}
			else
			{
				var tee = document.getElementById("tag"+i);
				var tag = document.getElementById("menu_tabcon"+i);
				tee.style.padding = "4px 17px 3px 17px";
				tag.style.display="none";
				document.getElementById("tag"+i).getElementsByTagName("a")[0].style.color="#3090C8";
				document.getElementById("tag"+i).getElementsByTagName("a")[0].style.fontWeight="normal";
			}
		}
	  }
	  
function product(producttag)
	{
		for (var j=1;j<=6;j++)
		{
			if (producttag == "producttag"+j)
			{

				document.getElementById("producttag"+j).getElementsByTagName("a")[0].className="productleft";
				document.getElementById("producttag"+j).getElementsByTagName("a")[0].getElementsByTagName("span")[0].className="productright";
				document.getElementById("hotproduct_list"+j).style.display="block";
			}
			else
			{
				document.getElementById("producttag"+j).getElementsByTagName("a")[0].className="";
				document.getElementById("producttag"+j).getElementsByTagName("a")[0].getElementsByTagName("span")[0].className="";
				document.getElementById("hotproduct_list"+j).style.display="none";
			}
		}
	}
	function flagtag(flagtag)
	{
		for (var k=1;k<=5;k++)
		{
			if (flagtag == "flagtag"+k)
			{

				document.getElementById("flagtag"+k).getElementsByTagName("a")[0].className="flagtagleft";
				document.getElementById("flagtag"+k).getElementsByTagName("a")[0].getElementsByTagName("span")[0].className="flagtagright";
				document.getElementById("flagtag"+k).getElementsByTagName("a")[0].getElementsByTagName("span")[0].style.color="#FF6600";
				document.getElementById("flagtag"+k).getElementsByTagName("a")[0].getElementsByTagName("span")[0].style.fontWeight="bold";
				document.getElementById("flag_list"+k).style.display="block";
			}
			else
			{
				document.getElementById("flagtag"+k).getElementsByTagName("a")[0].className="";
				document.getElementById("flagtag"+k).getElementsByTagName("a")[0].getElementsByTagName("span")[0].className="";
				document.getElementById("flagtag"+k).getElementsByTagName("a")[0].getElementsByTagName("span")[0].style.color="#7B7B7B";
				document.getElementById("flagtag"+k).getElementsByTagName("a")[0].getElementsByTagName("span")[0].style.fontWeight="normal";
				document.getElementById("flag_list"+k).style.display="none";
			}
		}
	}
	
	function tradetag(tradetags)
	{
		for (var z=1;z<=5;z++)
		{
			if (tradetags == "tradeshow_contop"+z)
			{
				document.getElementById("tradeshow_contop"+z).style.display = "block";
			}
			else
			{
					document.getElementById("tradeshow_contop"+z).style.display = "none";
			}
		}
	}