runtime error

[shamsuljewel]

elem=document.getElementById("errfname");
if(fname.length == 0)
{
	//alert("Full name empty");
	elem.innerHTML=("Enter a Full name").fontcolor("red").blink();
	err=1;
}
else
	elem.innerHTML="";

elem=document.getElementById("erraddress");
////////////////     Address          ////////////////////////
if(address.length == 0)
{
	//alert("Full name empty");
	elem.innerHTML=("Enter Your address").fontcolor("red").blink();
	err=1;
}
else
	elem.innerHTML="";

 

But in mojila firefox it is ok but on IE I have got a jScript runtime error. at

elem.innerHTML="";

 

the error is 'null' is null or an object

where I mistake? can anyone help?

[shamsuljewel]

I solved it

I am so foolish....I did a sily mistake.

I do not use the errfname or erraddress in the coding