function DrawImage(ImgD,FitWidth,FitHeight){
	var image=new Image();
	image.src=ImgD.src;
	if(image.width>0 && image.height>0){
		if(image.width/image.height>= FitWidth/FitHeight){
			if(image.width>FitWidth){
				ImgD.width=FitWidth;
				ImgD.height=(image.height*FitWidth)/image.width;
			}else{
				ImgD.width=image.width;
				ImgD.height=image.height;
			}
		}else{
			if(image.height>FitHeight){
				ImgD.height=FitHeight;
				ImgD.width=(image.width*FitHeight)/image.height;
			}else{
				ImgD.width=image.width;
				ImgD.height=image.height;
				}
		}
	}
}

function checkChinese(obj,nr){
	var re = /[\u4E00-\u9FA5]+/;   
    if(re.test(obj.value)){
		alert(nr);
		return false;   
    }   
}

function  checkMail(str){   
	var strReg="";                   
	var r;   
	var strText=str;   
	strReg=/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/i;
	r=strText.search(strReg);   
	if(r==-1){return false;alert("false");}else{return true;alert("true");}
}