function changeLang(chglang) {
	if(chglang.toLowerCase().indexOf('eng')>=0){
		if (window.location.href.toLowerCase().indexOf('/chi/')>0){
			loc = window.location.href.replace("/chi/","/"+chglang+"/");			
		}else{
			loc = window.location.href.replace("/simp/","/"+chglang+"/");
		}
	
	}else if(chglang.toLowerCase().indexOf('chi')>=0){
		if (window.location.href.toLowerCase().indexOf('/eng/')>0){
			loc = window.location.href.replace("/eng/","/"+chglang+"/");			
		}else{
			loc = window.location.href.replace("/simp/","/"+chglang+"/");
		}
	
	
	}else if(chglang.toLowerCase().indexOf('simp')>=0){
		if (window.location.href.toLowerCase().indexOf('/eng/')>0){
			loc = window.location.href.replace("/eng/","/"+chglang+"/");			
		}else{
			loc = window.location.href.replace("/chi/","/"+chglang+"/");
		}
	
	}
	window.location = loc;	
}