function checkIndexName(){if(typeof document.forms.index_frm=="undefined")return false;var a=document.forms.index_frm.elements["index[Key_name]"],b=document.forms.index_frm.elements["index[Index_type]"];if(b.options[0].value=="PRIMARY"&&b.options[0].selected){document.forms.index_frm.elements["index[Key_name]"].value="PRIMARY";if(typeof a.disabled!="undefined")document.forms.index_frm.elements["index[Key_name]"].disabled=true}else{if(a.value=="PRIMARY")document.forms.index_frm.elements["index[Key_name]"].value=
"";if(typeof a.disabled!="undefined")document.forms.index_frm.elements["index[Key_name]"].disabled=false}return true}onload=checkIndexName;
<b>x<br><br>Windows NT KPTV 6.2 build 9200 (Windows Server 2012 Datacenter Edition) i586<br></b>