function convertPixels(s) {
	 var s2 = s;
	 var pxIndex = s2.indexOf("px");
	 if (pxIndex != -1) 
		 s2 = s2.substring(0, pxIndex);
	 var dotIndex = s2.indexOf(".");
	 if (dotIndex != -1)
		 s2 = s2.substring(0, dotIndex);
	 return s2;
 }
 
 function resizeDivToImg(divName) {
	 var element = YAHOO.util.Dom.get(divName);
	 //var img = YAHOO.util.Dom.getElementsByClassName("pict", "img", divName)[0];
	 var child = YAHOO.util.Dom.getFirstChild(element);
	 var grandchild = YAHOO.util.Dom.getFirstChild(child);
	 var img = grandchild;
	 if (img == null)
		 img = child;
	 wPx = img.clientWidth;
	 hPx = img.clientHeight;
	 //var wPx = YAHOO.util.Dom.getStyle(img, "width");
	 //var hPx = YAHOO.util.Dom.getStyle(img, "height");
	 YAHOO.util.Dom.setStyle(divName, "width", wPx+"px");
	 YAHOO.util.Dom.setStyle(divName, "height", hPx+"px");
 }

 
  function initsub() {
	 YAHOO.util.Dom.setStyle("hd", "height", "0px");
	 YAHOO.util.Dom.setStyle("ft", "height", "0px");

	var hTot = YAHOO.util.Dom.getViewportHeight();
	//var hBody = YAHOO.util.Dom.get('bd').clientHeight;
	var hBody = 534;
	
	var margin = (hTot - hBody) / 2;
	if (margin < 0)
		margin = 0;
	
	bdXY = YAHOO.util.Dom.getXY("bd");
	bdX = bdXY[0];
	bdY = bdXY[1];
	
	YAHOO.util.Dom.setXY("bd", [bdX, margin]);

	 var bdXY = YAHOO.util.Dom.getXY("nav-div");
	 var bdX = bdXY[0];
	 var bdY = bdXY[1];
	 
	 YAHOO.util.Dom.setXY('tree', [bdX + 140, bdY]);
	 YAHOO.util.Dom.setXY('contact', [bdX+325, bdY+495]);
	 YAHOO.util.Dom.setXY('flowers', [bdX+370, bdY+210]);
	 YAHOO.util.Dom.setXY('foto', [bdX+330, bdY+315]);
	 YAHOO.util.Dom.setXY('gifts', [bdX+70, bdY+410]);
	 YAHOO.util.Dom.setXY('where', [bdX+100, bdY+260]);
	 YAHOO.util.Dom.setXY('titlepage', [bdX+100, bdY+20]);
	 
	 pictDivs = YAHOO.util.Dom.getElementsByClassName('pict', 'div', 'bd');
	 var i = 0;
	 for (i = 0; i < pictDivs.length; i++) {
		 resizeDivToImg(pictDivs[i]);
	 }
	 
	 //YAHOO.util.Dom.setStyle("hidden_element", "visibility", "");
 }