Case =[case1, case2,case3]
Condition = [condition1,condition2,condition3]
Observation = [obs1,obs2,obs3]

+----------------------------------
| Case  | Condition  | Observation|
+---------------------------------+
| case1 | condition1 | obs1       |
+---------------------------------+
| case2 | condition2 | obs2       |
+---------------------------------+
| case3 | condition3 | obs3       |
+---------------------------------+

Case =["case1", "case2","case3"];
Condition = ["condition1","condition2","condition3"];
Observation = ["obs1","obs2","obs3"];

for(i=0;i<Case.length;i++)
{
    document.getElementById(tableid).innerHTML+="<tr><td>"+Case[i]+"</td><td>"+Condition[i]+"</td><td>"+Observation[i]+"</td></tr>"
}