var mstatus=true; 
var timer1=false; 
var mstep=3;
var cm=null;
var hide_delay=100;
var tstat=0;

isNS4 = (document.layers) ? true : false;
isIE4 = (document.all && !document.getElementById) ? true : false;
isIE5 = (document.all && document.getElementById) ? true : false;
isNS6 = (!document.all && document.getElementById) ? true : false;


function switchDiv(objElement,bolVisible){
if(isNS4||isIE4){
     if(!bolVisible) {
       objElement.visibility ="hidden"
     } else {
       objElement.visibility ="visible"
     }     
 } else if (isIE5 || isNS6) {
      if(!bolVisible){
         objElement.style.display = "none";
         
      } else {
        objElement.style.display = "";
        
        }

      }

return 1;
}


function getPos(el,sProp) {
	var iPos = 0;
	while (el!=null) {
		iPos+=el["offset" + sProp]
		el = el.offsetParent
	}
	return iPos

}


function getelementbyid(myid) {
   if (isNS4){
        objElement = document.layers[myid];
     }else if (isIE4) {
        objElement = document.all[myid];
     }else if (isIE5 || isNS6) {
             objElement = document.getElementById(myid);
     }
return(objElement);
}


function show(el,m) {

if (m!=null) {
m=getelementbyid(m);
}


        if ((el==null) && (cm)) {
        mstatus=false;
        movefx()

        } else if ((m!=cm) && (m)) {
        if (cm!=null) switchDiv(cm,false);

        switchDiv(m,true);
        fxel=el;             
        fxm=m;
        fxrect=0;

        mstatus=true;
        movefx()
	}
        
        if (m) cm=m; 

  if (tstat==1) {
  clearTimeout(timer1);
  tstat=0
  }
 
}



function hidemenu(b) {
 if (b)  {
 tstat=1;
 timer1=setTimeout("show(null)",hide_delay);
 } else {
 tstat=0;
 show(null);
 }

}


function cancelhide() {

if (!mstatus) {
mstatus=1;
}
 
tstat=0;
clearTimeout(timer1);
 

}



function movefx() {

if ((mstatus) && (fxrect>fxm.offsetHeight)) {
fxrect=fxm.offsetHeight;
return 1;

 
} 


if ((!mstatus) && (fxrect<0)) {
fxrect=0;
switchDiv(fxm,false);
mstatus=true;
cm=null;
return 1;

}

if ((isIE5)||(isIE4)||(isNS4)||(isNS6)) {
 if (!isNS4) {
 fxm.style.left = getPos(fxel,"Left")+"px";
 fxm.style.clip='rect(' + (fxm.offsetHeight-fxrect) + ' '+ fxm.offsetWidth + ' ' + fxm.offsetHeight +' '+ 0 +')';
 fxm.style.top = getPos(fxel,"Top")+(fxel.offsetHeight-fxm.offsetHeight+fxrect+2)+"px"; 
 } else {
 fxm.left=getPos(fxel,"Left");
 fxm.clip.top=fxm.offsetHeight-fxrect;
 fxm.clip.bottom=fxm.offsetHeight;
 fxm.clip.left=0;
 fxm.clip.right=fxm.offsetWidth;
 fxm.top=getPos(fxel,"Top")+(fxel.offsetHeight-fxm.offsetHeight+fxrect+2); 
 }


  if (mstatus) {
  fxrect=fxrect+mstep;
  setTimeout('movefx()',1);
  } else {
  fxrect=fxrect-mstep;
  setTimeout('movefx()',1);

  }

 return 1; 
} else {
  if (mstatus) {
  fxm.style.left =getPos(fxel,"Left")+"px";
  fxm.style.top = (getPos(fxel,"Top")+ fxel.offsetHeight) +"px";
   } else {
  switchDiv(fxm,false);
  cm=null;
  mstatus=true;
  }
return 1 
}


}