function img(){
			
				kt = document.getElementById("fit");
				ch = document.getElementById("check");
				 if (kt.src == "http://logic.dev/images/checkbox_0.png"){
						kt.src = "/images/checkbox_1.png"
						ch.checked = true;
						
				 }
				
				else{
					
					kt.src = "/images/checkbox_0.png";
					ch.checked = false;	
				} 
					
					
								
				
				}