var menuAreas = ["services", "technologies","open_source","free_software"];
var selectedMenuArea = false;
var slideSpeed = 0.3;


function menuClicked(menuArea) {
	var divId = "menu_block_" + menuArea;

	if(selectedMenuArea!=false&&selectedMenuArea!=menuArea) {
		new Effect.SlideUp("menu_block_" + selectedMenuArea, {duration:slideSpeed,queue:{scope:'issartMenuScopeClose', position:'end'}});
		$("title_id_" + menuArea).className = "";
	}
	if(selectedMenuArea==menuArea) {
		new Effect.SlideUp(divId, {duration:slideSpeed,queue:{scope:'issartMenuScope', position:'end'}});
		selectedMenuArea = false;
		$("title_id_" + menuArea).className = "";
	} else {
		new Effect.SlideDown(divId, {duration:slideSpeed,queue:{scope:'issartMenuScope', position:'end'}});
		selectedMenuArea = menuArea;
		checkSelMenu(menuArea);
	}
}

function checkSelMenu(menuArea){
	for (i = 0; i < menuAreas.length; i++) {
    	$("title_id_" + menuAreas[i]).className = "";
    }    
	$("title_id_" + menuArea).className = "sel";
}