function submitonce(theform) {
  if (document.all||document.getElementById) {
    for (i=0;i<theform.length;i++) {
      var tempobj=theform.elements[i]
      if (tempobj.type) {
        if(tempobj.type.toLowerCase()=="submit") {
          tempobj.disabled=true;
        }
      }
    }
  }
}
function externalLinks() {
 if (!document.getElementsByTagName) return;
 var anchors = document.getElementsByTagName("a");
 for (var i=0; i<anchors.length; i++) {
   var anchor = anchors[i];
   if (anchor.getAttribute("href") &&
       anchor.getAttribute("rel") == "external")
     anchor.target = "_blank";
  }
}
function adminfocus() {
  document.forms[0].admin_email.focus()
}
function userfocus() {
  document.forms[0].user_company.focus()
}
function contactfocus() {
  document.forms[0].contact_title.focus()
}
var count = "165";
function limiter(){
  var tex = document.forms['purchase'].user_desc.value;
  var len = tex.length;
  if(len > count){
    tex = tex.substring(0,count);
    document.forms['purchase'].user_desc.value =tex;
    return false;
  }
  document.forms['purchase'].limit.value = count-len;
}
function enableImage() {
  if(document.forms['purchase'].imagecheck.checked == true) {
    document.forms['purchase'].user_image.disabled = false ;
  } else {
    document.forms['purchase'].user_image.disabled = true ;
  }
}