The Processing Methods of innerhtml and value in IE, Firefox, and chrome are different.

Create a new document, input the content, and rename it ".

 
1:<Textarea ID= "QQ"> </Textarea>
 

 
2:<Script>
 

 
3:// Document. getelementbyid ("QQ"). value = '000000 ';
 

 
4:Document. getelementbyid ("QQ"). Innerhtml ='Sfsdfsdfsfaf';
 

 
5:Document. getelementbyid ("QQ"). Value ='123';
 

6:// The innerhtml and value of the "QQ" node are displayed.
 

 
7:Alert ("Innerhtml :"+ Document. getelementbyid ("QQ"). Innerhtml +"Value :"+ Document. getelementbyid ("QQ"). Value );
 

 
8:</Script>
 

1. assign values to innerhtml first, and then assign values to value

Open with IE 7 and the result is as follows:

Open it with Firefox 4.0.1 and the result is as follows:

Open chrome 10.0.648.204 with the same result as Firefox:

2.CodeComment out the fifth line in, and the results in the three browsers are the same:

3. Cancel the comments on the third line. The result is as follows:

Conclusion: ◎ assign values to innerhtml and value to value. In IE 7, the value will overwrite the innerhtml value, but will not be overwritten in Firefox 4 and chrome 10.

◎ Assign values only to innerhtml and not to value. The three browsers automatically assigned the innerhtml value to the value.

◎ Assign values first, and then assign values to innerhtml. In Firefox 4, The innerhtml value does not overwrite the value, and the other two Browsers Do Not.