var delayms=2500;			// time interval before next check
	var retries=5;				// do at most 5 iterations
	var currH=0;				//current height (based on image calculation)
	
	var timer;
	function calcHeight()
	{
		var tmpH = parent.FindXY( document.getElementById( "endpage" ) ).y; 
		if ( tmpH != currH )							{ currH=tmpH; parent.heightChanged( ""+window.name , currH );	}
		else if ( parent.areImagesLoading( document ) ) { ; }
		else if ( retries-- > 0 ) 						{ ; }
		else											{ return false; }
		timer=setTimeout( "calcHeight()" , delayms );
	}

 function parentImageSelected(img){
  	 	parent.imageSelected(img);
  }

 function parentImageSelectedLg(img){
  	 	parent.imageSelectedLg(img);
  }