function go_to(url) {
  if(url!="") {
    document.location=url;
  }
}





var myMenuNodes = [
  {
	  id:'home',
	  image:'images/home.jpg',
	  mouseover_image:'images/home_on.jpg',
	  leftclick:function(e){go_to("index.html")}
  },{ 
    id:'about', 
	image:'images/about.jpg',
	mouseover_image:'images/about_on.jpg',
	leftclick:function(e){go_to("about.html")},
	children:[
	{ 
	    id:'news', 
		image:'images/news.jpg',
		mouseover_image:'images/news_on.jpg',
		leftclick:function(e){go_to("news.html")}
	},{ 
	    id:'contact', 
		image:'images/contact.jpg',
		mouseover_image:'images/contact_on.jpg',
		leftclick:function(e){go_to("contact.html")}
	}
	]
  },{ 
    id:'services_environment', 
	image:'images/environment.jpg',
	mouseover_image:'images/environment_on.jpg',
	leftclick:function(e){go_to("environment.html")},
	children:[
	  { 
        id:'environment_training', 
		image:'images/training.jpg',
		mouseover_image:'images/training_ro.jpg',
	    leftclick:function(e){go_to("opacity_registration.html")}
      },{ 
        id:'environment_rules', 
		image:'images/methods.jpg',
		mouseover_image:'images/methods_ro.jpg',
	    leftclick:function(e){go_to("opacity_methods.html")}
      },{
		id:'environment_faq',
		image:'images/faq.jpg',
		mouseover_image:'images/faq_ro.jpg',
		leftclick:function(e){go_to("opacity_faq.html")}
	  }
    ]
  },{
	id:'geotechnical',
	image:'images/geotechnical.jpg',
	mouseover_image:'images/geotechnical_on.jpg',
	leftclick:function(e){go_to("geotechnical.html")}
  },{
	id:'building_science',
	image:'images/building.jpg',
	mouseover_image:'images/building_on.jpg',
	leftclick:function(e){go_to("building_science.html")}
  },{
  	id:'materials',
	image:'images/materials.jpg',
	mouseover_image:'images/materials_on.jpg',
	leftclick:function(e){go_to("materials.html")}
  },{
    id:'careers', 
	image:'images/careers.jpg',
	mouseover_image:'images/careers_on.jpg',
	leftclick:function(e){go_to("careers.html")},
	children:[
	  { 
        id:'careers_why_levelton', 
	    image:'images/why_levelton.jpg',
	    mouseover_image:'images/why_levelton_on.jpg',
	    leftclick:function(e){go_to("why_levelton.html")}
      },{ 
        id:'careers_current_openings', 
	    image:'images/openings.jpg',
	    mouseover_image:'images/openings_on.jpg',	
	    leftclick:function(e){go_to("current_openings.html")}
      }
			  
    ]
  }

];