var Nav4 = ((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) == 4));
		
		if (document.images) {

   			qbb1on = new Image(64,57);
   			qbb1on.src = "new_images/qbb1on.gif";
  			qbb1off = new Image(64,57);
   			qbb1off.src = "new_images/qbb1off.gif";
   
   			qbb2on = new Image(64,57);
   			qbb2on.src = "new_images/qbb2on.gif";
   			qbb2off = new Image(64,32);
   			qbb2off.src = "new_images/qbb2off.gif";
   
   			qbb3on = new Image(64,57);
   			qbb3on.src = "new_images/qbb3on.gif";
   			qbb3off = new Image(64,57);
   			qbb3off.src = "new_images/qbb3off.gif";
   
   			qbb4on = new Image(64,57);
   			qbb4on.src = "new_images/qbb4on.gif";
   			qbb4off = new Image(64,57);
   			qbb4off.src = "new_images/qbb4off.gif";
   			
   			c1 = new Image(537,448);
   			c1.src = "new_images/QBpc_graph.gif";

   			c2 = new Image(537,448);
   			c2.src = "new_images/QBpc_numeric.gif";

 			c3 = new Image(537,448);
   			c3.src = "new_images/QBpc_custom.gif";
   			
   			c4 = new Image(537,448);
   			c4.src = "new_images/QBpc_environment.gif";
		}
		
		
		function act_off(imgName) {
  			if (document.images)
    		document[imgName].src = eval(imgName + 'off.src');
		}
		
		function act_on1(imgName) {
    		if (document.images) {
      		document[imgName].src = eval(imgName + 'on.src');
      		if (Nav4) {
    		document['test'].src = eval('c1.src');
    		}}}
		
		function act_on2(imgName) {
    		if (document.images) {
      		document[imgName].src = eval(imgName + 'on.src');
      		if (Nav4) {
    		document['test'].src = eval('c2.src');
    		}}}
		
		function act_on3(imgName) {
    		if (document.images) {
      		document[imgName].src = eval(imgName + 'on.src');
      		if (Nav4) {
    		document['test'].src = eval('c3.src');
    		}}}
		
		function act_on4(imgName) {
    		if (document.images) {
      		document[imgName].src = eval(imgName + 'on.src');
      		if (Nav4) {
    		document['test'].src = eval('c4.src');
    		}}}
		
		
		function click_on1(imgName) {
			if (document.images){
    		if (Nav4) {
    		} else {
    		crossfade(document.getElementById('test'),'new_images/QBpc_graph.gif','1','QuickBench Graph View')}
    		}}
    	
		function click_on2(imgName) {
			if (document.images){
    		if (Nav4) {
    		} else {
    		crossfade(document.getElementById('test'),'new_images/QBpc_numeric.gif','1','QuickBench Numeric View');}
    		}}
      		
      	function click_on3(imgName) {
			if (document.images){
    		if (Nav4) {
    		} else {
    		crossfade(document.getElementById('test'),'new_images/QBpc_custom.gif','1','QuickBench Custom Test');}
    		}}
    		
    	function click_on4(imgName) {
			if (document.images){
    		if (Nav4) {
    		} else {
    		crossfade(document.getElementById('test'),'new_images/QBpc_environment.gif','1','QuickBench Environment View');}
    		}}