function setMain() {
	if( setMain.arguments.length ){
		document.images.mainpic.src = setMain.arguments[0];
	}else{
		document.images.mainpic.src = "$item->{mainpicsrc}";
	}
}
function checkSize(){
	if(!document.forms.sizeform.c_size)
		return true;

	if(document.forms.sizeform.c_size.selectedIndex < 1){
		document.getElementById('calldow').style.display = 'none';
		alert('Please select a size for this item');
		return false;
	}else if(document.forms.sizeform.c_size.value == '0' ||
		document.forms.sizeform.c_size.value == '100'){
		document.getElementById('calldow').style.display = '';
		return false;
	}
	else {
		document.getElementById('calldow').style.display = 'none';
		return true;
	}
}