var youtubeRE = /(http:\/\/)?([a-zA-Z]+.)?youtube.com\/watch\?v=([\w-]+)/;

var gvRE = /(http:\/\/)?video.google.com\/videoplay\?docid=([\w-]+)/;





function video_Expand(idTag, warnText) {

	if (document.getElementById('div'+idTag).style.getPropertyValue) {

		direction = document.getElementById('div'+idTag).style.getPropertyValue("display");

	} else {

		direction = document.getElementById('div'+idTag).style.display;

	}

	if (direction=='block') {

		direction = 'none';

	} else {

		if (warnText == '' || confirm(warnText)) {

			direction='block';

		}

	}

	document.getElementById('div'+idTag).style.display = direction;

}







function video_submitForm(mfrm) {

	var me = mfrm.elements;



        var url = me['video'].value;

        var match = youtubeRE.exec(url);

        if (match != null) {

          me['videotype'].value = "youtube";

          return true;

        }

        match = gvRE.exec(url);

        if (match != null) {

          me['videotype'].value = "google";

          return true;

        }

        

        alert( "Please enter a valid  YouTube url.");

        return false;

}