function popupper(url,x,y,name,sb,rs,st,lt,tb) {
var win = null;
var centerwidth=(screen.width/2)-(x/2);

if( y == "100%")
	var centerheight =0 ;
else
	var centerheight=(screen.height/2)-(y/2);

var scrollbarstext = 'scrollbars = no,';
var resizabletext = 'resizable = no,';
var statustext = 'status = no,';
var locationtext = 'location = no,';
var toolbartext = 'toolbar = no,';
var features = '';
if (sb == 1){
scrollbarstext = 'scrollbars = yes,'
}
if (rs == 1){
resizabletext = 'resizable = yes,'
}
if (st == 1){
statustext = 'status = yes,'
}
if (lt == 1){
locationtext = 'location = yes,'
}
if (tb == 1){
toolbartext = 'toolbar = yes,'
}
features = scrollbarstext+resizabletext+statustext;
features = features + locationtext+toolbartext;

if( y == "100%")
	y = screen.height;

features = features + 'width = '+x+',height = '+y;
features = features + ',top = ' + centerheight;
features = features + ',left = ' + centerwidth;
win = window.open(url, name, features);
}

var timer = null ;

function blinkText(flag)
{
	var text = document.getElementById("blink_text");
	if(text)
	{
		if( flag )
		{	changeClass( text , "text_out" ); }
		else
		{	changeClass( text , "text_in" ) ; }
		
		flag=!flag;
		
		timer = window.setTimeout( function(){ blinkText(flag); } , 500 );
	}
}

function changeClass( elem , new_class )
{
	var type = typeof(elem) ;
	var el = null;
	
	if(type=="string")
		el = getId( elem );	
	else
		el = elem
		
	if(el)
	{
		el.removeAttribute("class");
		var cls = document.createAttribute( "class" );
		cls.value = new_class ;
		el.setAttributeNode( cls );
	}

}