var flag
flag=0

function change(obj){
if (flag==0)
flag=1
else
flag=0;
obj.focus();
}

function convert(myfield,e)
{
if (flag==0)
{
var key;
if (window.event)
   key = window.event.keyCode;
else if (e)
   key = e.which;
if (key>31)
if (key<128)
{
if (window.event)
    window.event.keyCode=' !"#$%،گ)(×+و-./0123456789:ك,=.؟@ِذ}ىُىلآ÷ـ،/’د×؛َءٍف‘{ًْإ~جژچ^_پشذزيثبلاهتنمئدخحضقسفعرصطغظ<|>ّ'.charCodeAt(key-32);
else if (e)
   e.which=' !"#$%،گ)(×+و-./0123456789:ك,=.؟@ِذ}ىُىلآ÷ـ،/’د×؛َءٍف‘{ًْإ~جژچ^_پشذزيثبلاهتنمئدخحضقسفعرصطغظ<|>ّ'.charCodeAt(key-32);

   }


   	return true;
}
}