create Range for Other browsers (Cross Browser Compatibility)

[Suganthar]

I have a text box. When I write first text , then java script function will fire to check whether it is a number.

For IE , the following code is returning -1 value, But Other browsers it does not alert any value. Please help me

var selected = document.selection.createRange();

var decInSel = selected.text.indexOf('.');
hasNegInSel  = selected.text.indexOf('-') != -1;

alert(decInSel);

[Dormilich]

reason is probably that IE & other browsers use a slightly different Range model.

[Suganthar]

Please help me how i can modify this to work in other browsers

[Dormilich]

since I haven’t used Ranges myself, I can only point you to the appropriate references (MDN). (make sure to also check the links given there)