// JavaScript Document

  function clickHand(idN){
	if (document.getElementById(idN).style.display == "none"){
		document.getElementById(idN).style.display = "";
		}
	else if (document.getElementById(idN).style.display == ""){
		document.getElementById(idN).style.display = "none";
		}
	}
 function doClick(url) 
	{
		location.href=url.id;
	}
 function newImage(arg) {
	if (document.images){
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
 }		
 function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
 }
 var preloadFlag = false;
 function preloadImages() {
		n_1 = newImage("images/but_ov_01.gif");
		n_2 = newImage("images/but_ov_03.gif");
		n_3 = newImage("images/but_ov_05.gif");
		n_4 = newImage("images/but_ov_07.gif");
		n_5 = newImage("images/but_ov_09.gif");
		n_6 = newImage("images/but_ov_11.gif");
		n_7 = newImage("images/but_ov_13.gif");
		preloadFlag = true;
 }
 function  changeStyleOver(a)
 	{
		var aaa = document.getElementById(a).className;
		var mmm = aaa.substring (aaa.length - 2, aaa.length);
		if (mmm!="ov"){
			document.getElementById(a).className=aaa+"_ov";
		}
	}
 function  changeStyleOut(a)
 	{
		var aaa = document.getElementById(a).className;
		var mmm = aaa.substring (aaa.length - 2, aaa.length);
		if (mmm=="ov"){
			document.getElementById(a).className= aaa.substring (0, aaa.length - 3);
		}
	}
 preloadImages();