var r=180
var w=770,h=30
ns4=(document.layers)?true:false
ie4=(document.all)?true:false
function init(){ 
    if(ns4) block=document.blockDiv
    if(ie4) block=blockDiv.style
    
    angle=0
    count=0
    slide()
 } 

function  slide(){   
  if (angle<=1420) {
     angle+=5
     if(ns4){
       block.xpos=window.screen.width/2-50-r*Math.cos(angle*Math.PI/180)
       block.ypos=180+pageYOffset+r*Math.sin(angle*Math.PI/180)}
     if(ie4) {
	   block.xpos=window.screen.width/2-50-r*Math.cos(angle*Math.PI/180) 
	   block.ypos=180+document.body.scrollTop+r*Math.sin(angle*Math.PI/180) }
    block.left=block.xpos
    block.top=block.ypos
   	
    timer=setTimeout("slide()",100) }
  
  else { 
   angle=0
   r=180
   w-=50
   h+=25
   if (h>=380) { w=770; h=30 }  
   block.xpos=1
   block.ypos=1
   slide()
}
  }  
function stopslide(){clearTimeout(timer)}

document.write('<div id="blockDiv" style="position:absolute; width:51px; height:34px; z-index:1; left: 1; top: 1"><img src="../../image/lowhua.gif" width="51" height="34" onmouseover=stopslide(); onmouseout=slide();> </div> ')
init()