var active = 0;

		var height = 150;

		function toggle_visible() {
		
			if(active == 0) {
				
				active = 1;
				
				divPlusOne();				
			
			} else if(active == 1){
			
				active = 0;	
					
				divMinusOne();
			
			}
		
		}
		
		function divPlusOne() {
			
			if(height <= 150) {
			
				document.getElementById('testDiv').style.visibility="visible";	
			
				height = height + 5;
				document.getElementById('testDiv').style.height=height + 'px';		
				
				window.setTimeout('divPlusOne()', 1);
				
			}
		
		}
		
		function divMinusOne() {
			
			if(height >= 20) {
			
				height = height - 5;
				document.getElementById('testDiv').style.height=height + 'px';
				
				window.setTimeout('divMinusOne()', 1);
				
			} else {
			
				document.getElementById('testDiv').style.visibility="hidden";
			
			}
			
		}

		function divInit() {
			
			if(height >= 20) {
			
				height = height - 150;
				document.getElementById('testDiv').style.height=height + 'px';
				
				window.setTimeout('divMinusOne()', 1);
				
			} else {
			
				document.getElementById('testDiv').style.visibility="hidden";
			
			}
			
		}