function noenter() {
  return !(window.event && window.event.keyCode == 13); 
}
  
function setTransparencyHov(sObj) {
	try {
		obj = $(sObj);
		opacity=0.5;		 
		 // IE/Win 
		 obj.style.filter = "alpha(opacity:"+opacity*100+")";
		  // Safari<1.2, Konqueror
		  obj.style.KHTMLOpacity = opacity;
			// Older Mozilla and Firefox
		 obj.style.MozOpacity = opacity; 
			 // Safari 1.2, newer Firefox and Mozilla, CSS3 
		obj.style.opacity = opacity; 
	} catch(e) { }
}
function setOpacityHov(sObj) {
	try {
		obj = $(sObj);
		opacity=1;		 
		 // IE/Win 
		 obj.style.filter = "alpha(opacity:"+opacity*100+")";
		  // Safari<1.2, Konqueror
		  obj.style.KHTMLOpacity = opacity;
			// Older Mozilla and Firefox
		 obj.style.MozOpacity = opacity; 
			 // Safari 1.2, newer Firefox and Mozilla, CSS3 
		obj.style.opacity = opacity;
	} catch(e) { }
}