var conditions_menu=false;
var procedures_menu=false;
function icon_mouse_over(menu_name){
	if(menu_name=='conditions'&&!conditions_menu){
		if(procedures_menu){
			var x=new getObj('category_procedures');
			x.style.display='none';
			procedures_menu=false;
		}
		var y=new getObj('category_conditions');
		y.style.display='block';
		conditions_menu=true;
	}
	if(menu_name=='procedures'&&!procedures_menu){
		if(conditions_menu){
			var x=new getObj('category_conditions');
			x.style.display='none';
			conditions_menu=false;
		}
		var y=new getObj('category_procedures');
		y.style.display='block';
		procedures_menu=true;
	}
}
function getObj(name){
	if(document.getElementById){
		this.obj=document.getElementById(name);
		this.style=document.getElementById(name).style;
	}else if(document.all){
		this.obj=document.all[name];
		this.style=document.all[name].style;
	}else if(document.layers){
		this.obj=document.layers[name];
		this.style=document.layers[name];
	}
}