Add colspan attribute to element in JavaScript with setattribute invalid

Attach the code First

var tr=document.createelement (' tr '); var td=document.createelement (' TD '); Td.setattribute (' colspan ', ' 9 '); Tr.appendchild (TD);

I would like to set the Colspan property value for this TD, but found that the TD has colspan= ' 9 ' on the page, but it does not achieve the effect of cross-line.

Finally found the ' colspan ' attribute to be changed to ' colspan '

Just can't set the s to lowercase, I tried the browser is ie.

Another td.colspan= ' 9 '; Yes, but it is not possible to write s in lowercase.

Finally Baidu got the following explanation:

For label properties, IE6, IE7 are case-insensitive, IE8 case-sensitive

Add colspan attribute to element in JavaScript with setattribute invalid