if(s1!=s2||s1!='<ul><li style="color: red;">this is 1 </li><li>this is 2 </li><li style="color: red;">this is 3 </li><li>this is 4 </li><li style="color: red;">this is 5 </li></ul>'){
if(s1!=s2||s1!='<ul><li style="color: red;">this is 1 </li><li>this is 2 </li><li style="color: red;">this is 3 </li><li>this is 4 </li><li style="color: red;">this is 5 </li></ul>'){
if(s1!=s2||s1!='<ul><li style="color: red;">this is 1 </li><li>this is 2 </li><li style="color: red;">this is 3 </li><li>this is 4 </li><li style="color: red;">this is 5 </li></ul>'){