var now;//the current date 
Var allDay=new Array (42);//date array 
Var n;//number on the first day of the month week 
Var days;//number of days during the month 
/* * 
* get the current date 
*/
The function getCurrentDate () {
Var time=document. GetElementById (" start "). The value; 
Now=new Date (time substr (0, 10)); 
} 
/* * 
* the main function 
*/
The function main (STR) {
Var source=STR; 
GetCurrentDate (); 
Var strFrame='& lt; The table class=mt id=mt> '; 
StrFrame +='& lt; tr> '; 

StrFrame +='& lt; td> '; 
StrFrame +="& lt; Id=p \ "prevM " onclick=\ "prevMonth () " & gt; "; 
StrFrame +='& lt; <'; 
StrFrame +='& lt;/p> '; 
StrFrame +='& lt;/td> '; 

StrFrame +='& lt; Td colspan=5 & gt; '; 
StrFrame +='& lt; P> '; 
StrFrame +=now. GetFullYear () + 'years' + (now, getMonth () + 1) +' month '; 
StrFrame +='& lt;/p> '; 
StrFrame +='& lt;/td> '; 

StrFrame +='& lt; td> '; 
StrFrame +="& lt; Id=p \ "nextM " onclick=\ "nextMonth () " & gt; "; 
StrFrame +='& gt;> '; 
StrFrame +='& lt;/p> '; 
StrFrame +='& lt;/td> '; 
StrFrame +='& lt;/tr> '; 

StrFrame +='& lt; tr> '; 
StrFrame +='& lt; td> '; 
StrFrame +='& lt; P> '; 
StrFrame +=', '; 
StrFrame +='& lt;/p> '; 
StrFrame +='& lt;/td> '; 

StrFrame +='& lt; td> '; 
StrFrame +='& lt; P> '; 
StrFrame +='a'; 
StrFrame +='& lt;/p> '; 
StrFrame +='& lt;/td> '; 

StrFrame +='& lt; td> '; 
StrFrame +='& lt; P> '; 
StrFrame +='2'; 
StrFrame +='& lt;/p> '; 
StrFrame +='& lt;/td> '; 

StrFrame +='& lt; td> '; 
StrFrame +='& lt; P> '; 
StrFrame +='three'; 
StrFrame +='& lt;/p> '; 
StrFrame +='& lt;/td> '; 

StrFrame +='& lt; td> '; 
StrFrame +='& lt; P> '; 
StrFrame +='4'; 
StrFrame +='& lt;/p> '; 
StrFrame +='& lt;/td> '; 

StrFrame +='& lt; td> '; 
StrFrame +='& lt; P> '; 
StrFrame +='five'; 
StrFrame +='& lt;/p> '; 
StrFrame +='& lt;/td> '; 

StrFrame +='& lt; td> '; 
StrFrame +='& lt; P> '; 
StrFrame +='6'. 
StrFrame +='& lt;/p> '; 
StrFrame +='& lt;/td> '; 
StrFrame +='& lt;/tr> '; 
StrFrame +='& lt;/table> '; 
Var div1=document. GetElementById (" div1 "); 
Var div2=document. GetElementById (" div2 "); 

If (source=='end') {
Alert (" true "); 
Div2. InnerHTML=strFrame; 
Div1. InnerHTML=""; 
} else {
Alert (" false "); 
Div1. InnerHTML=strFrame; 
Div2. InnerHTML=""; 
} 
Document. The getElementById (" prevM "). The addEventListener (" click ", prevMonth); 
Document. The getElementById (" nextM "). The addEventListener (" click ", prevMonth); 
} 
The function prevMonth () {
Alert (" a "); 
} 
The function nextMonth () {
Alert (" b "); 
} 

After the operation only can perform the onclick in div2, cannot perform div1, what reason be? Which master know?