function checksel(sl){   
         var obj = document.getElementsByName(sl.name);   
         for (i=0; i<obj.length; i++){   
             if (obj[i]!=sl) {
			           obj[i].checked = false; 
			        }  
             else {
			           obj[i].checked = true;
			           
			        }   
         }   
} 
function checkform(obj){
         var targettf=false;
         var totletest=obj.totletest.value;
         for(i=0; i<document.getElementsByName("test").length; i++){
               if(document.getElementsByName("test")[i].checked){
                  totletest=document.getElementsByName("test")[i].value*1+totletest*1
                  targettf=true;
               }
         }
         if(targettf==false){
                alert("请选择！")
                return false;
         }
         obj.totletest.value=totletest;
         return true;
   }
function checksform(obj,n){
         var targettf=false;
         var totletest=obj.totletest.value;
         for(i=1; i<=n; i++){
               if(document.getElementsByName("test"+i)[0].checked){
                  totletest=document.getElementsByName("test"+i)[0].value*1+totletest*1
                  targettf=true;
               }
               if(document.getElementsByName("test"+i)[1].checked){
                  totletest=document.getElementsByName("test"+i)[1].value*1+totletest*1
                  targettf=true;
               }
               if((document.getElementsByName("test"+i)[0].checked==false)&&(document.getElementsByName("test"+i)[1].checked==false)){
                  targettf=false;
                  break;
               }
         }
         if(targettf==false){
                alert("请选择完成所有提问！")
                return false;
         }
         obj.totletest.value=totletest;
         return true;
   }
   function checktform(obj,n){
         var targettf=false;
         var totletest=obj.totletest.value;
         for(i=1; i<=n; i++){
               if(document.getElementsByName("test"+i)[0].checked){
                  totletest=document.getElementsByName("test"+i)[0].value*1+totletest*1
                  targettf=true;
               }
               if(document.getElementsByName("test"+i)[1].checked){
                  totletest=document.getElementsByName("test"+i)[1].value*1+totletest*1
                  targettf=true;
               }
               if(document.getElementsByName("test"+i)[2].checked){
                  totletest=document.getElementsByName("test"+i)[2].value*1+totletest*1
                  targettf=true;
               }
               if((document.getElementsByName("test"+i)[0].checked==false)&&(document.getElementsByName("test"+i)[1].checked==false)&&(document.getElementsByName("test"+i)[2].checked==false)){
                  targettf=false;
                  break;
               }
         }
         if(targettf==false){
                alert("请选择完成所有提问！")
                return false;
         }
         obj.totletest.value=totletest;
         return true;
   }
   function checklform(obj,n){
         var totletest=obj.totletest.value;
         targettf=false;
         for(i=1; i<=n; i++){
               if(document.getElementsByName("test"+i)[0].checked){
                  totletest=document.getElementsByName("test"+i)[0].value*1+totletest*1;
				  targettf=true;
                }
         }
         if(targettf==false){
                alert("请选择完成所有提问！")
                return false;
         }
         obj.totletest.value=totletest;
         
         return true;
   }