function checkAlltopten(formname)
{

	for(i=0; i<document.getElementById(formname).elements.length; i++)
		{
		if(document.getElementById(formname).elements[i].type=="checkbox")
			{
			document.getElementById(formname).elements[i].checked=true;
			}
	}
}

function uncheckalltopten(formname)
{
	for(i=0; i<document.getElementById(formname).elements.length; i++)
		{
		if(document.getElementById(formname).elements[i].type=="checkbox")
			{
			document.getElementById(formname).elements[i].checked=false;
			}
	}
}

function playSelected(formname)
{
		var filename = ""
		for(i=0; i<document.getElementById(formname).elements.length; i++)
		{
			if(document.getElementById(formname).elements[i].checked == true){
				
			filename +=  "|" + document.getElementById(formname).elements[i].value
			
			}
 		}
		spopplay(filename.substr(1))
}