function changeSign(id_in,sign_in,sign_out){
		tmpSubMenu=document.getElementById(id_in).innerHTML;
		for(i=0;i<2;i++){
			tmpSubMenu=tmpSubMenu.replace(sign_in,sign_out);
			}
		document.getElementById(id_in).innerHTML=tmpSubMenu;	
}

function expandCollapse(id) {
    if (document.getElementById(id+"Content").style.display == 'block') {
        document.getElementById(id+"Content").style.display = 'none'
		changeSign(id,'-','+');
    } else {
        document.getElementById(id+"Content").style.display = 'block'
		changeSign(id,'+','-');
    }
}

function showProject(projectName)
{
	var url = "contents/flvPlayers/" + projectName + ".htm"
	window.open(url,projectName,"width=500, height=420, resizable=no");
}