function popup(mylink, windowname)
{
 if (! window.focus)return true;
 var href;
 if (typeof(mylink) == 'string')
   href=mylink;
 else
   href=mylink.href;
 window.open(href, windowname, 'width=1000,height=768,scrollbars=yes');
 return false;
}

function miniPopup(mylink, windowname)
{
 if (! window.focus)return true;
 var href;
 if (typeof(mylink) == 'string')
   href=mylink;
 else
   href=mylink.href;
 window.open(href, windowname, 'width=400,height=300,scrollbars=yes');
 return false;
}

function setPreviousForPrevNext(){
 var pos = document.getElementById("prevnextstartingpos");
 pos.value = pos.value-100;
}


/*
 * IE Hack for displaying the dropdown menu
 */
sfHover = function() {
   var browser = navigator.appName;
   var version = parseFloat(navigator.appVersion)
   var agent   = navigator.userAgent;
   // alert(browser + " = " + agent);

   
   if( browser == "Microsoft Internet Explorer" && (agent.indexOf('msie 7') > -1) || agent.indexOf('MSIE 7') > -1 ){
   //alert('IE7');
      // IE 7
   	var sfEls = document.getElementById("nav").getElementsByTagName("li");
	   for (var i=0; i<sfEls.length; i++) {
         var child = sfEls[i].getElementsByTagName("li");
         for( var j=0; j<child.length; j++){
            child[j].style.display = "none";
         }
         sfEls[i].className+=" sfHover";

		   sfEls[i].onmouseover=function() {
             var child = this.getElementsByTagName("li");
             for( var j=0; j<child.length; j++){
                child[j].style.display = "";
             }
		
		   }
		   sfEls[i].onmouseout=function() {
            var child = this.getElementsByTagName("li");
            for( var j=0; j<child.length; j++){
               child[j].style.display = "none";
            }
		   }
		}
   }else{
   //alert('IE 6 or lower');
      // IE 6 or lower
      var sfEls = document.getElementById("nav").getElementsByTagName("li");
      for (var i=0; i<sfEls.length; i++) {
		  sfEls[i].onmouseover=function() {
          this.className+=" sfhover";
		  }
		  sfEls[i].onmouseout=function() {
          this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		  }
		
      }
	}
}


if (window.attachEvent) window.attachEvent("onload", sfHover);