function showFocus(obj) { 
	hideFocus();
    obj.className = "focusHover";
}

function hideFocus() {
    num = document.getElementsByTagName("table");
    for(i = 0; i < num.length; i++) {
        if(num[i].className=="focusHover")
				num[i].className="focus";
    }
}



function explodeMenu(obj){
	var element_div		= 	document.getElementById('cat_'+obj);
	var element_img		= 	document.getElementById('img_'+obj);
	var element_imgPlus	= 	document.getElementById('imgPlus_'+obj);
	
	if(element_div.style.display=="none"){
		element_div.style.display	=	"";
		element_img.src				=	'./images/menu/folder_open.gif';
		element_imgPlus.src			=	'./images/menu/minus.gif';
	}else{
		element_div.style.display	=	"none";
		element_img.src				=	'./images/menu/folder_close.gif';
		element_imgPlus.src			=	'./images/menu/plus.gif';
	}
	
}