	<!--	
			function black_bg() {
				bg=document.getElementById('background_overlay');
				bg.className='background_overlayBG';
			}
				
			function no_bg() {
				bg=document.getElementById('background_overlay');
				bg.className='';
			}				
			
			function return_scroll() {				
				scr_v=delineate_scroll(document.getElementById('bubble_frame').src);
				window.scroll(0,scr_v);	
			}
			
			function delineate_scroll(str) {
				point=str.lastIndexOf("=");
				return(str.substring(point+1,str.length));
			}
			
			function getYOffset() {
				var pageY;
				
				if(typeof(window.pageYOffset)=='number') {
					pageY=window.pageYOffset;    
				} else {
					pageY=document.documentElement.scrollTop;
				}    
			
				return pageY;
			}
				
			function change(id, newClass, test, win) {
				identity=document.getElementById(id);
				identity.className=newClass;
				
				if(test) {
						black_bg();						
					} else {
						no_bg();
						return_scroll();
					}
				
				if(win) {
					bg=document.getElementById("bubble_frame");					
					bg.src=win+'&scroll='+getYOffset();					
					window.scroll(0,0);
					}
					
				}

			
		//-->