// JavaScript Document
// not animated collapse/expand
function togglePannelStatus(content)
{
    var expand = (content.style.display=="none");
    content.style.display = (expand ? "block" : "none");
    toggleChevronIcon(content);
}

// current animated collapsible panel content
var currentContent = null;

function togglePannelAnimatedStatus(content, interval, step)
{
    // wait for another animated expand/collapse action to end
    if (currentContent==null)
    {
		var content = document.getElementById(content).style.display;
		alert(content);
		if (content=="none"){
			document.getElementById(content).style.display= "block";
			var max_height = document.getElementById(content).offsetHeight;
	       	var step_height = step + (expand ? 0 : -max_height);
		    toggleChevronIcon(content);	
		}else{
			document.getElementById(content).style.display= "none";
			var max_height = content.offsetHeight;
	       	var step_height = step + (expand ? 0 : -max_height);
		    toggleChevronIcon(content);	
			}
		
		var expand = (document.getElementById(content).style.display=="none");
		if (expand)
           	document.getElementById(content).style.display = "block";
        	var max_height = content.offsetHeight;
	       	var step_height = step + (expand ? 0 : -max_height);
		    toggleChevronIcon(content);	
		
		//if(document.getElementById(content)!=''){
		//	var expand = (content.style.display=="none");
        //	if (expand)
        //   	content.style.display = "block";
        //		var max_height = content.offsetHeight;

		//       var step_height = step + (expand ? 0 : -max_height);
  		//      toggleChevronIcon(content);	
		//}
		
		
		//org start
        currentContent = content;
        var expand = (content.style.display=="none");
        if (expand)
           content.style.display = "block";
        var max_height = content.offsetHeight;

        var step_height = step + (expand ? 0 : -max_height);
        toggleChevronIcon(content);
        
				
        // schedule first animated collapse/expand event
        content.style.height = Math.abs(step_height) + "px";
        setTimeout("togglePannelAnimatingStatus("
           + interval + "," + step
          + "," + max_height + "," + step_height + ")", interval);
    }
}

function togglePannelAnimatingStatus(interval,
    step, max_height, step_height)
{
    var step_height_abs = Math.abs(step_height);

    // schedule next animated collapse/expand event
    if (step_height_abs>=step && step_height_abs<=(max_height-step))
    {
        step_height += step;
        currentContent.style.height = Math.abs(step_height) + "px";
        setTimeout("togglePannelAnimatingStatus("
            + interval + "," + step
            + "," + max_height + "," + step_height + ")", interval);
    }
    // animated expand/collapse done
    else
    {
        if (step_height_abs<step)
            currentContent.style.display = "none";
        currentContent.style.height = "";
        currentContent = null;
    }
}

// change chevron icon into either collapse or expand
function toggleChevronIcon(content)
{
    var chevron = content.parentNode
        .firstChild.childNodes[1].childNodes[0];
    var expand = (chevron.src.indexOf("expand.gif")>0);
    chevron.src = chevron.src
        .split(expand ? "expand.gif" : "collapse.gif")
        .join(expand ? "collapse.gif" : "expand.gif");
}