function OpenBrWindow(theURL,winName,features, myWidth, myHeight, isCenter) { //v3.0
  if(window.screen)if(isCenter)if(isCenter=="true"){
    var myLeft = (screen.width-myWidth)/2;
    var myTop = (screen.height-myHeight)/2;
    features+=(features!='')?',':'';
    features+=',left='+myLeft+',top='+myTop;
  }
  window.open(theURL,winName,features+((features!='')?',':'')+'width='+myWidth+',height='+myHeight);
}
function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}
function show_secret() {
	el=document.getElementById('secret');
	(el.style.display=='none') ? el.style.display='inline' : el.style.display='none';
}
function show_prew() {
	el=document.getElementById('prew');
	(el.style.display=='none') ? el.style.display='inline' : el.style.display='none';
}
function show_img() {
	el=document.getElementById('imag');
	(el.style.display=='none') ? el.style.display='inline' : el.style.display='none';
}
function show_img1() {
	el=document.getElementById('imag1');
	(el.style.display=='none') ? el.style.display='inline' : el.style.display='none';
}
function show_img2() {
	el=document.getElementById('imag2');
	(el.style.display=='none') ? el.style.display='inline' : el.style.display='none';
}
function show_img3() {
	el=document.getElementById('imag3');
	(el.style.display=='none') ? el.style.display='inline' : el.style.display='none';
}
function show_img4() {
	el=document.getElementById('imag4');
	(el.style.display=='none') ? el.style.display='inline' : el.style.display='none';
}