var increaseCnt = 0;
            var increaseInt;
        
            function makevisible(strdiv) {
                document.getElementById(strdiv).style.display = "block";
    	    }
            function hide(strdiv) {            
                increaseCnt = 0;
                document.getElementById(strdiv).style.display = "none";
            }
            function slideIn(strdiv, height) {
                document.getElementById(strdiv).style.display = "block";
                increaseInt = setInterval('increaseHeight("'+strdiv+'","'+height+'")', 5);
    	    }
    	    function increaseHeight(strdiv, height) {
    	        if(increaseCnt<height) {
    	            increaseCnt = increaseCnt + 20;
    	            document.getElementById(strdiv).style.height = increaseCnt + 'px';
    	        }
    	        else {
    	            clearInterval(increaseInt);
    	        }
    	    }