for (i=companyName.length;i>0;i--){
  if (companyName.substr(i,1)=="\'"||companyName.substr(i,1)=="\"") {
   companyName = companyName.substring(0,i)+"\\"+companyName.substring(i,companyName.length);
   }
 }
 
 function formInput() {
    // empty object
  }

  var valueOf = new formInput();

  var pairs = document.location.search.substring(1).split("&");
  for (var i=0; i < pairs.length; i++) {
    var values = pairs[i].split("=");
    valueOf[values[0]] = unescape(values[1]);
  }

var imageTag='gallery/' + '/images/' + valueOf["image"];
document.write('\<img name="photo" src='+imageTag+' border="0" hspace="0" vspace="0" onMouseDown="alert(\'This photo is copyrighted by '+companyName+'\')"\>');