function MM_jumpMenu(targ,selObj,restore){
	eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
	if(restore) selObj.selectedIndex=0;
}

function exMenu(tName1,tName2,tName3,tName4,num){
	tMenu1 = document.getElementById(tName1).style;
	tMenu2 = document.getElementById(tName2).style;
	tMenu3 = document.getElementById(tName3).style;
	tMenu4 = document.getElementById(tName4).style;
	
	if(num == '1'){
		if(tMenu1.display == 'none'){
			tMenu1.display = "block";
			tMenu4.display = "none";
		}else{
			tMenu1.display = "none";
			tMenu4.display = "block";
		}
		if(tMenu2.display == 'block'){tMenu2.display = "none";}
		if(tMenu3.display == 'block'){tMenu3.display = "none";}
	}
	
	if(num == '2'){
		if(tMenu1.display == 'block'){tMenu1.display = "none";}
		if(tMenu2.display == 'none'){
			tMenu2.display = "block";
			tMenu4.display = "none";
		}else{
			tMenu2.display = "none";
			tMenu4.display = "block";
		}
		if(tMenu3.display == 'block'){tMenu3.display = "none";}
	}
	
	if(num == '3'){
		if(tMenu1.display == 'block'){tMenu1.display = "none";}
		if(tMenu2.display == 'block'){tMenu2.display = "none";}
		if(tMenu3.display == 'none'){
			tMenu3.display = "block";
			tMenu4.display = "none";
		}else{
			tMenu3.display = "none";
			tMenu4.display = "block";
		}
	}
}

function exMenu2(tName,tName2){
	tMenu = document.getElementById(tName).style;
	tMenu2 = document.getElementById(tName2).style;
	if(tMenu.display == 'none'){tMenu.display = "block";}else{tMenu.display = "none";}
	if(tMenu2.display == 'none'){tMenu2.display = "block";}else{tMenu2.display = "none";}
}

function exMenu3(tName){
	tMenu = document.getElementById(tName).style;
	if(tMenu.display == 'none'){tMenu.display = "block";}else{tMenu.display = "none";}
}


var state = 'none';
function showhide(layer_ref){
	if(state == 'block'){
		state = 'none';
	}else{
		state = 'block';
	}
	if(document.getElementById &&!document.all){
		hza = document.getElementById(layer_ref);
		hza.style.display = state;
	}
}