function expcol(elementid) { if
(this.document.getElementById(elementid).style.display=="none")
{this.document.getElementById(elementid).style.display='';
this.document.getElementById(elementid+"txt").innerHTML="Click to Collapse";}
else {this.document.getElementById(elementid).style.display="none";
this.document.getElementById(elementid+"txt").innerHTML="Click to Expand";} }