var GetWidth=function(){x=0;if (self.innerHeight){x=self.innerWidth;}else if(document.documentElement && document.documentElement.clientHeight){x=document.documentElement.clientWidth;}else if(document.body){x=document.body.clientWidth;}return x;}
var GetHeight=function(){y=0;if(self.innerHeight){y=self.innerHeight;}else if(document.documentElement && document.documentElement.clientHeight){y=document.documentElement.clientHeight;}else if(document.body){y=document.body.clientHeight;}return y;}
var open_popup=function(a){x=GetWidth();y=GetHeight();widthPopup =a.style.width.replace(/px/, '') || 900;heightPopup=a.style.height.replace(/px/, '') || 400;leftPopup=x/2-widthPopup/2;topPopup=(y-heightPopup)/2;mypopup=window.open(a.href+"&nocanvas=1", a.className, 'left=' + leftPopup + ',top=' + topPopup + ',scrollbars=yes,resizable=yes,width=' + widthPopup + ',height=' + heightPopup );mypopup.focus();return false;}