var bNetscape4plus = (navigator.appName == "Netscape" && navigator.appVersion.substring(0,1) >= "4");
var bExplorer4plus = (navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion.substring(0,1) >= "4");
function CheckUIElementspiao(){
      var yMenuFrom, yMenuTo, yButtonFrom, yButtonTo, yOffset, timeoutNextCheck;

var scrollPos; 
if (typeof window.pageYOffset != 'undefined') { 
   scrollPos = window.pageYOffset; 
} 
else if (typeof document.compatMode != 'undefined' && 
     document.compatMode != 'BackCompat') { 
   scrollPos = document.documentElement.scrollTop; 
} 
else if (typeof document.body != 'undefined') { 
   scrollPos = document.body.scrollTop; 
} 
//alert(scrollPos);

      if ( bNetscape4plus ) { 
              yMenuFrom   = document["piao"].top;
              yMenuTo     = top.pageYOffset + 295;  
		
      }
      else if ( bExplorer4plus ) {
              yMenuFrom   = parseInt (piao.style.top, 10);
             // yMenuTo     = document.body.scrollTop + 135; //距页面顶部的距离
		yMenuTo     =scrollPos +135;  
		
	 
      }




      timeoutNextCheck = 500;

      if ( Math.abs (yButtonFrom - (yMenuTo + 152)) < 6 && yButtonTo < yButtonFrom ) {
              setTimeout ("CheckUIElementspiao()", timeoutNextCheck);
		alert( "1");
              return;
      }

      if ( yButtonFrom != yButtonTo ) {
              yOffset = Math.ceil( Math.abs( yButtonTo - yButtonFrom ) / 10 );
              if ( yButtonTo < yButtonFrom )
                      yOffset = -yOffset;

              if ( bNetscape4plus )
                      document["divLinkButton"].top += yOffset;
              else if ( bExplorer4plus )
                      divLinkButton.style.top = parseInt (divLinkButton.style.top, 10) + yOffset;
 
		alert( "2");
              timeoutNextCheck = 10;
      }
      if ( yMenuFrom != yMenuTo ) {
              yOffset = Math.ceil( Math.abs( yMenuTo - yMenuFrom ) / 20 );
              if ( yMenuTo < yMenuFrom )
                      yOffset = -yOffset;

              if ( bNetscape4plus )
                      document["piao"].top += yOffset;
              else if ( bExplorer4plus )
                      piao.style.top = parseInt (piao.style.top, 10) + yOffset;

              timeoutNextCheck = 10;
      }
	//alert( yMenuFrom.toString()+"--"+ yMenuTo.toString()); 
     // setTimeout ("CheckUIElementspiao()", timeoutNextCheck);
}

function OnLoadpiao()
{
      var y;
      if ( top.frames.length )
      if ( bNetscape4plus ) {
              //document["piao"].top = top.pageYOffset  + 135; //2010-05-05 将联系方式图片放置页面最上方
	      document["piao"].top = top.pageYOffset ;
              document["piao"].visibility = "visible";
      }
      else if ( bExplorer4plus ) { 
              //piao.style.top = document.body.scrollTop + 235; //2010-05-05 将联系方式图片放置页面最上方
	      piao.style.top = document.body.scrollTop;
              piao.style.visibility = "visible";
      }
    
      //CheckUIElementspiao();
      return true;
}
OnLoadpiao();