// JavaScript Document
function menuFix() {
 var sfEls = document.getElementById("nav").getElementsByTagName("li");
 for (var i=0; i<sfEls.length; i++) {
  sfEls[i].onmouseover=function() {
  this.className+=(this.className.length>0? " ": "") + "sfhover";
  }
  sfEls[i].onMouseDown=function() {
  this.className+=(this.className.length>0? " ": "") + "sfhover";
  }
  sfEls[i].onMouseUp=function() {
  this.className+=(this.className.length>0? " ": "") + "sfhover";
  }
  sfEls[i].onmouseout=function() {
  this.className=this.className.replace(new RegExp("( ?|^)sfhover\\b"), 
"");
  }
 }
}
window.onload=menuFix;

//Êó±ê»¬¶¯²Ëµ¥
function tabit(tabName,btnId,tabNumber)
{
    for(i=0;i<tabNumber;i++)
	{
	document.getElementById(tabName+"_div"+i).style.display = "none";
	}
	document.getElementById(tabName+"_div"+btnId).style.display = "block";
}