function ChangeByTag(element,mySize,myStyle,myColor){
if(document.getElementsByTagName)
   {
   var myContent = document.getElementsByTagName(element)
   var max = myContent.length
   for(var i = 0;i < max;i++)
      {
      var myContentObj = myContent.item(i);
	  myContentObj.style.fontSize = mySize;
      myContentObj.style.fontStyle = myStyle;
      }
   }
}