function callPaypal(){  	
	 window.open("https://www.paypal.com/cgi-bin/webscr?cmd=_cart&business=papercloud%40paper-cloud.com&submit.x=64&submit.y=23&display=1&page_style=Primary"); 
}  

function callBlank(url){  	
	 window.open(url); 
}  

//popup window
function popCentered(url,widthVar,heightVar,scrollbars, windowName){ 
        //scrollbars param accepts 'yes' or 'no' 
        var Xpos= (screen.availWidth - widthVar)/2; 
        var Ypos= (screen.availHeight - heightVar)/2; 
        var str="toolbar=no,location=no,scrollbars=" + scrollbars + ",directories=no,status=no,menubar=no,resizable=yes,copyhistory=no,left=" + Xpos + ",screenX=" + Xpos + ",top=" + Ypos + ",screenY=" + Ypos + ",width="+widthVar+",innerWidth="+widthVar+",height="+heightVar+",innerHeight="+heightVar;

        window.open(url,windowName,str); 
}