function Insert(str){
	var objTextarea;
	var form=document.myform;
	       objTextarea=frames.HtmlEditor.document.body
           objTextarea.focus();

		if ((document.selection)&&(document.selection.type== "Text"))
	{
		var range= document.selection.createRange();
		var ch_text=range.text;
		range.text= str + ch_text;
	}
	else if ( (document.selection)&&(document.selection.type=="None") )
	{
		var range= document.selection.createRange();
		range.text= str;
	}
	else
	{
		objTextarea.value=objTextarea.value+str;
		objTextarea.focus();
	}
}