function Swap(daImage, daSrc){
  	var objStr,obj;
  
    if(document.images){
        if (typeof daImage == 'string') {
      	objStr = 'document.' + daImage;
      	obj = eval(objStr);
      	obj.src = daSrc;
  	} else if ((typeof daImage == 'object') && daImage && daImage.src) {
      		daImage.src = daSrc;
    		}
  	return true;}
	}function goHist(a){
   	history.go(a);      // Go back one.
	}