script not working in firefox

[annu saroha]

var row = tab.insertRow();	 
var cell0 = row.insertCell(0); 
cell0.innerHTML = ""; 
var cell1 = row.insertCell(1); 
cell1.innerHTML = "<input name='other"+count1+"' id='Or"+count1+"' style='width: 160px;' onkeyup='checkedu(event,this.id,40);' type='text'>"; 
var cell2 = row.insertCell(2); 
cell2.innerHTML = "<input name='ins3"+count1+"' id='i3"+count1+"' style='width: 160px;' onkeyup='checkedu(event,this.id,40);' type='text'>"; 
var cell3 = row.insertCell(3); 
cell3.innerHTML = "<input name='yearpass3"+count1+"' id='y3"+count1+"' style='width: 160px;' onkeyup='checknum(event,this.id,4);' onblur='checknum1(event,this.id,4);' type='text'>";

this code is working fine in IE but not in firefox... Please help.

[acoder]

What does "not working" mean? What do you expect to happen? What happens instead? Do you see any error messages?