function checkframe()
{
searchstr=location.search;
searchstr=searchstr.replace('?','');
searcharr=searchstr.split('&');
varname=new Array();
varval=new Array();
for(n=0;n<searcharr.length;n++)
 {
 pairarr=searcharr[n].split('=');
 varname[n]=pairarr[0];
 varval[n]=pairarr[1];
 }
 
if(document.all)
 {
 if(varname[0]=='urlstr'&&varname[1]=='ifname')
  {
  ifstr='document.all.' + varval[1] + '.src=unescape(varval[0]);';
  eval(ifstr);
  }
  }
else
 {
 if(varname[0]=='urlstr'&&varname[1]=='ifname')
  {
  ifstr='frames["' + varval[1] +'"].location.href=unescape(varval[0]);';
  eval(ifstr);
  }
 }
}