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if (document.images){
		m_a0 = new Image();
		m_a0.src = "images/m_a0.gif";
		m_a1 = new Image();
		m_a1.src = "images/m_a1.gif";
		m_a2 = new Image();
		m_a2.src = "images/m_a2.gif";
		m_a3 = new Image();
		m_a3.src = "images/m_a3.gif";
		m_a4 = new Image();
		m_a4.src = "images/m_a4.gif";
		
		
		m_a0o = new Image();
		m_a0o.src = "images/m_a0o.gif";
		m_a1o = new Image();
		m_a1o.src = "images/m_a1o.gif";
		m_a2o = new Image();
		m_a2o.src = "images/m_a2o.gif";
		m_a3o = new Image();
		m_a3o.src = "images/m_a3o.gif";
		m_a4o = new Image();
		m_a4o.src = "images/m_a4o.gif";
}
function onoff(x, y) {
        if(document.images) {
                document.images[x].src=eval(y+'.src');
		     }
        }

function stringReplace(p_element,in_str,out_str){
var new_str;
var a_char="";
var s_str="";
	for(var x=0;x<in_str.length;x++){
		a_char=in_str.substr(x,1);
		if(a_char=="$"||a_char=="^"||a_char=="*"||a_char=="("||a_char==")"||a_char=="+"||a_char=="?"||a_char=="\\"){
			a_char="\\"+a_char;
		}
		s_str+=a_char;
	}
	new_str=new RegExp(s_str,"gi");
	results=p_element.replace(new_str,out_str);
	return results;
}
function subnav(sub_menu,parent_menu){
	if(!document.getElementById){
		return;
	}
	var sub_menu=document.getElementById(sub_menu);
	if(sub_menu.style.display=="none"){
		sub_menu.style.display="";
	}else{
		sub_menu.style.display="none";
	}
}