function popupper(url,x,y,name,sb,rs,st,lt,tb) {


var win = null;

var centerwidth=(screen.width/2)-(x/2);
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;
features = features + 'width = '+x+',height = '+y;
features = features + ',top = ' + centerheight;
features = features + ',left = ' + centerwidth;
win = window.open(url, name, features);
win.focus();
}


function openTarget (form, features, windowName) {
  if (!windowName)
    windowName = 'formTarget' + (new Date().getTime());
  form.target = windowName;
  open ('', windowName, features);
}


function startBooking()
{
	var windowName = 'formTarget' + (new Date().getTime()); 
	var features = "width=750,height=550,left="+((screen.width/2)-(700/2))+",top="+((screen.height/2)-(550/2))+";resizable=1,scrollbars=1" ;
	var form  = document.forms["bookingevolution_rates"] ;

	form.target = windowName;
  	open ('', windowName, features);
  	form.submit();

}