if (document.images) {
		P_Off  = new Image(154,23)
		T_Off = new Image(69,23)
		S_Off  = new Image(92,23)
		H_Off = new Image(87,23)
                M_Off = new Image(275,23)
		Home_Off = new Image(90,19)                
                Pf_Off  = new Image(154,23)
                Tf_Off = new Image(69,23)
                Sf_Off  = new Image(92,23)
                Hf_Off = new Image(87,23)
                Mf_Off = new Image(275,23)
	
                P_On  = new Image(154,23)
                T_On   = new Image(69,23)
                S_On  = new Image(92,23)
                H_On   = new Image(87,23)
		M_On   = new Image(275,23)
		Home_On   = new Image(90,19)		
                Pf_On  = new Image(154,23)
                Tf_On   = new Image(69,23)
                Sf_On  = new Image(92,23)
                Hf_On   = new Image(87,23)
                Mf_On   = new Image(275,23)

			
                P_Off.src  = "images/participants_l_green.gif"
                T_Off.src = "images/topics_l_green.gif"
                S_Off.src  = "images/schedule_l_green.gif"    
                H_Off.src = "images/housing_l_green.gif"
                M_Off.src = "images/modest_l_green.gif"
		Home_Off.src = "images/home.gif"                
                Pf_Off.src  = "images/index_21.gif"
                Tf_Off.src = "images/index_22.gif"
                Sf_Off.src  = "images/index_23.gif"
                Hf_Off.src = "images/index_24.gif"
                Mf_Off.src = "images/index_20.gif"


                P_On.src  = "images/participants_d_green.gif"
                T_On.src = "images/topics_d_green.gif"  
                S_On.src  = "images/schedule_d_green.gif"
                H_On.src = "images/housing_d_green.gif"
                M_On.src = "images/modest_d_green.gif"
                Home_On.src = "images/home_green.gif"
                Pf_On.src  = "images/tmp_21.gif"            
                Tf_On.src = "images/tmp_22.gif"      
                Sf_On.src  = "images/tmp_23.gif"        
                Hf_On.src = "images/tmp_24.gif"       
                Mf_On.src = "images/tmp_20.gif"      


	}
	
	function chgImg(imgField,newImg) {
		if (document.images) {
			document[imgField].src= eval(newImg + ".src")
		}
	}