function targetBlank(){
	var host=window.location.hostname;
	var a=document.getElementsByTagName("a");
	for(var i=0,len=a.length; i<len; i++){
		var ah=a[i].href;
		if(ah.indexOf("http://") > -1 && ah.indexOf(host) == -1){
			a[i].target="_blank";
		}
	}
}


function copyrightYear(startY){
	var nowY=new Date().getFullYear();
	if(nowY == startY) return ;

	var cy=document.getElementById("copyrightYear");
	cy.innerHTML=startY+"-"+nowY;
}