html特殊符号转换函数（转）

functionHTMLEncode(str)                                                    
{                                                                  
var s ="";                                                   
if(str.length == 0) return"";                                
s   =   str.replace(/&/g,"&");                          
s   =   s.replace(/s   =   s.replace(/>/g,">");                             
s   =    s.replace(//g," ");                           
s   =   s.replace(/\'/g,"'");                           
s   =   s.replace(/\"/g,""");                         
return  s;                                                  
}
                                                                  
functionHTMLDecode(str)                                           
{                                                                   
var s ="";                                                   
if(str.length == 0)   return"";                              
s =str.replace(/&/g,"&");                                
s =s.replace(/</g,"<");                                   
s =s.replace(/>/g,">");                                   
s = s.replace(/ /g,"");                                 
s =s.replace(/'/g,"\'");                                 
s =s.replace(/"/g,"\"");                                
return  s;                                                   
}