var img_dir = "../common/img/";
var ddata1,ddata2 ,ddata3;

function cchange( ddata1 , ddata2 ){
	if( ddata2 ==  "on" ){
	ddata3 = img_dir + ddata1 + "_on.gif";
		document.images[ddata1].src = ddata3;
	}
	else{
		document.images[ddata1].src = img_dir + ddata1 + ".gif";
	}
}

function preimg(){
var loadcomp = false;
	var preload = new Array();
	for(i = 0 ; i < preloadlist.length ; i++) {
		preload[i] = new Image();
		preload[i].src = preloadlist[i];
	}
	loadcomp = true;
}

var preloadlist = new Array
	(
	'../common/img/but01.gif',
	'../common/img/but01_on.gif',
	'../common/img/but02.gif',
	'../common/img/but02_on.gif',
	'../common/img/but03.gif',
	'../common/img/but03_on.gif',
	'../common/img/but04.gif',
	'../common/img/but04_on.gif',
	'../common/img/but05.gif',
	'../common/img/but05_on.gif',
	'../common/img/but06.gif',
	'../common/img/but06_on.gif',
	'../common/img/but07.gif',
	'../common/img/but07_on.gif',
	'../common/img/but08.gif',
	'../common/img/but08_on.gif',
	'../common/img/but09.gif',
	'../common/img/but09_on.gif',
	'../common/img/but10.gif',
	'../common/img/but10_on.gif',
	'../common/img/but11.gif',
	'../common/img/but11_on.gif',
	'../common/img/but12.gif',
	'../common/img/but12_on.gif',
	'../common/img/but13.gif',
	'../common/img/but13_on.gif',
	'../common/img/but14.gif',
	'../common/img/but14_on.gif',
	'../common/img/but15.gif',
	'../common/img/but15_on.gif',
	'../common/img/but16.gif',
	'../common/img/but16_on.gif',
	'../common/img/but17.gif',
	'../common/img/but17_on.gif',
	'../common/img/but18.gif',
	'../common/img/but18_on.gif'

	);
preimg();


function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}