var Fid = function(i){return document.getElementById(i);}

var switchPage = function(o, n, p){
   var ol = Fid(o+p);
   var cl = Fid(o+n);
   ol.style.display="none";
   cl.style.display="";
}
var doClearStyle = function( num,tab,newStyle ){
	var li = Fid( tab ).getElementsByTagName( "li" );
	for( var i = 0; i < li.length; i++ ){
		if( ( num-1 ) == i ){
			li[i].className = newStyle;
		} else {
			li[i].className = "";
		}
	}
}


var m2 = 1;
function doChange2( num ){  
   doClearStyle( num,"xul2","on3" );
   
   switchPage("xcol3_cnt", num, m2);
   m2 = num;
   return false;
}
var m3 = 1;
function doChange3( num ){  
   doClearStyle( num,"xul3","on4" );
   
   switchPage("col4_2_cnt", num, m3);
   m3 = num;
   return false;
}
var m4 = 1;
function doChange4( num ){  
   doClearStyle( num,"xul4","on4" );
   
   switchPage("col11_cnt", num, m4);
   m4 = num;
   return false;
}
/*¿ØÖƱí¸ñ¿í¶È*/
function doXX(ss,ss2){
	var table = document.getElementById( ss ).getElementsByTagName("table")[0];
	var td = table.getElementsByTagName("td");
	td[1].style.width=ss2;
}