function showHide(textid1,textid2, textid3,textid4) {
  var w;
  var h;
	var img2; 

   if(document.getElementById(textid1).style.display == "block"){
   		var img1 = document.getElementById(textid1);
   		img2 = document.getElementById(textid2);
  		 w=img1.width;
  		 h=img1.height;
	    document.getElementById(textid1).style.display = "none";
		document.getElementById(textid2).style.display = "block";
		document.getElementById(textid3).style.display = "none";
		document.getElementById(textid4).style.display = "block";
		

	} else{
   		var img1 = document.getElementById(textid2);
   		img2 = document.getElementById(textid1);
  		 w=img1.width;
  		 h=img1.height;
		document.getElementById(textid1).style.display = "block";
		document.getElementById(textid2).style.display = "none";
		document.getElementById(textid3).style.display = "block";
		document.getElementById(textid4).style.display = "none";
	}
	if (/MSIE [56].*Windows/.test(navigator.userAgent)) {
	fix(w,h,img2);
	}
	

  }
  
  function fix(width,height,img2) {
	var blank = new Image;
	blank.src = "../images/blank.gif";
		var s = img2.runtimeStyle;

		s.width = width + "px";
		s.height = height + "px";
		s.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "',sizingMethod='scale')";
		img2.src = blank.src;
	}