function CheckSubmit(){
	
	if(document.Mem_fm.name.value==''){                             
			alert("please fill in your name !");                             
	    	document.Mem_fm.name.focus();                 
	    	return false;             
	}
	
		if(document.Mem_fm.company.value==''){                             
			alert("please fill in your company !");                             
	    	document.Mem_fm.company.focus();                 
	    	return false;             
	}      
	
		
			if(document.Mem_fm.email.value==''){
			alert("please fill in your email !");                             
	    	document.Mem_fm.email.focus();                
	    	return false;              
	}
	
	if(document.Mem_fm.email.value.search(							/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) == -1)
	{
	alert("email error!!");
	document.Mem_fm.email.focus();
	return false;
	}
		
/*
// 一開始變數預設沒有選
var radio_choice = false;

// 循環所有的 Radio 選項檢查
for (counter = 0; counter < Mem_fm.attribute.length; counter++) {
// 如果任一 Radio 選項有選的話為真，無的話為假
if (Mem_fm.attribute[counter].checked) radio_choice = true;
}

if (!radio_choice) {
// 沒選的話提示訪客選一個
alert("請選擇attribute")
return (false);
}
else{
return (true);
}

*/		

if((document.Mem_fm.inquiry01.checked==false) && (document.Mem_fm.inquiry02.checked==false)  && (document.Mem_fm.inquiry03.checked==false) && (document.Mem_fm.inquiry04.checked==false)  && (document.Mem_fm.inquiry05.checked==false)){                             
			alert("Please select the inquiry !");                             
	    	document.Mem_fm.inquiry01.focus();                 
	    	return false;             
	}                     

                           

}