var timerlen = 5;
var slideAniLen = 250;

var timerID = new Array();
var startTime = new Array();
var obj = new Array();
var endHeight = new Array();
var moving = new Array();
var dir = new Array();

function slidedown(objname){
        if(moving[objname])
                return;

        if(document.getElementById(objname).style.display != "none")
                return; // cannot slide down something that is already visible

        moving[objname] = true;
        dir[objname] = "down";
        startslide(objname);
}




function slide_obj(objname){
        if(moving[objname])
                return;

        if(document.getElementById(objname).style.display == "none")
      {

        moving[objname] = true;
        dir[objname] = "down";
        startslide(objname); 
		
							if (objname !="menu_div1"){ 
							
													   if(document.getElementById("menu_div1").style.display != "none") {
													   moving["menu_div1"] = true;
        											  dir["menu_div1"] = "up";
        											   startslide("menu_div1");
													   
													   }
													   
													   
													   }
													   
													   
					
							if (objname !="menu_div2"){  
							
													 if(document.getElementById("menu_div2").style.display != "none") {
							
							
													  moving["menu_div2"] = true;
        											  dir["menu_div2"] = "up";
        											   startslide("menu_div2");}		
													 }
							if (objname !="menu_div3"){  
							
													 if(document.getElementById("menu_div3").style.display != "none") {
							
							
													  moving["menu_div3"] = true;
        											  dir["menu_div3"] = "up";
        											   startslide("menu_div3");}		
													 }													 
							if (objname !="menu_div4"){  
							
													 if(document.getElementById("menu_div4").style.display != "none") {
							
							
													  moving["menu_div4"] = true;
        											  dir["menu_div4"] = "up";
        											   startslide("menu_div4");}		
													 }													 
													 
							if (objname !="menu_div5"){  
							
													 if(document.getElementById("menu_div5").style.display != "none") {
							
							
													  moving["menu_div5"] = true;
        											  dir["menu_div5"] = "up";
        											   startslide("menu_div5");}		
													 }													 
													 
													 
		
		} else {
			
			        moving[objname] = true;
        			dir[objname] = "up";
        			startslide(objname);
					
			
									}
}





function slideup(objname){
        if(moving[objname])
                return;

        if(document.getElementById(objname).style.display == "none")
                return; // cannot slide up something that is already hidden

        moving[objname] = true;
        dir[objname] = "up";
        startslide(objname);
}

function startslide(objname){
        obj[objname] = document.getElementById(objname);

        endHeight[objname] = parseInt(obj[objname].style.height);
        startTime[objname] = (new Date()).getTime();

        if(dir[objname] == "down"){
                obj[objname].style.height = "1px";
        }

        obj[objname].style.display = "block";

        timerID[objname] = setInterval('slidetick(\'' + objname + '\');',timerlen);
}

function slidetick(objname){
        var elapsed = (new Date()).getTime() - startTime[objname];

        if (elapsed > slideAniLen)
                endSlide(objname)
        else {
                var d =Math.round(elapsed / slideAniLen * endHeight[objname]);
                if(dir[objname] == "up")
                        d = endHeight[objname] - d;

                obj[objname].style.height = d + "px";
        }

        return;
}

function endSlide(objname){
        clearInterval(timerID[objname]);

        if(dir[objname] == "up")
                obj[objname].style.display = "none";

        obj[objname].style.height = endHeight[objname] + "px";

        delete(moving[objname]);
        delete(timerID[objname]);
        delete(startTime[objname]);
        delete(endHeight[objname]);
        delete(obj[objname]);
        delete(dir[objname]);

        return;
}