Webmaster Forum / HTML, CSS, Scripts / JavaScript / November 2006

i am calling these functions bellow while adding and deleting ,i am
getting NaN on html page.

i need early replay...
thanks
sangram

var dual=0;
function check1()
{
       deleteRow(dual);
       dual=0;
       return true;
}

function check()
{

       generateRow(dual);
       dual=1;
       return true;

}

function deleteRow(dual)
{
       if(dual == 1)
       {
               var d1=document.getElementById("san1");
               d1.innerHTML-="<lable>Company Name*</label>";
               var d=document.getElementById("san");
               d.innerHTML-="<input type='text' name='company' >";
       }
       return true;
}

function generateRow(dual)
{
       if(dual < 1)
       {
               var d1=document.getElementById("san1");
               d1.innerHTML+="<lable>Company Name*</label>";
               var d=document.getElementById("san");
               d.innerHTML+="<input type='text' name='company'>";
       }
       return true;

}

it returns NaN on the broweser..
i do not want to display that one...