//Custom JavaScript Functions by Shawn Olson
//Copyright 2004
//http://www.shawnolson.net
//If you copy any functions from this page into your scripts, you must provide credit to Shawn Olson & http://www.shawnolson.net
//*******************************************


	function changecss(theClass,element,value) {
	//documentation for this script at http://www.shawnolson.net/a/503/
	 var cssRules;
	 if (document.all) {
	  cssRules = 'rules';
	 }
	 else if (document.getElementById) {
	  cssRules = 'cssRules';
	 }
	 for (var S = 0; S < document.styleSheets.length; S++){
	  for (var R = 0; R < document.styleSheets[S][cssRules].length; R++) {
	   if (document.styleSheets[S][cssRules][R].selectorText == theClass) {
		   alert("found the class!!!"  + theClass);
	    document.styleSheets[S][cssRules][R].style[element] = value;
	   }
	  }
	 }	
	}
	
	function checkUncheckAll(theElement) {
     var theForm = theElement.form, z = 0;
	 for(z=0; z<theForm.length;z++){
      if(theForm[z].type == 'checkbox' && theForm[z].name != 'checkall'){
	  theForm[z].checked = theElement.checked;
	  }
     }
    }

changecss('.top_ad_image','display','none');
changecss('top_ad_image','display','none');